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 58Likes
08-14-2017, 02:46 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
I assume I'm going to need to re-jet my Holley 3255-1 as well?
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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08-14-2017, 04:27 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
Carb is gonna be small for a 482, so yes, you will have to work on it a bit.
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08-14-2017, 04:53 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
Quote:
Originally Posted by blykins
Carb is gonna be small for a 482, so yes, you will have to work on it a bit.
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Will I need to just upsize the jets or more than that? It's currently at primary jets - 73, secondary jets - 85. The 3255 is rated at 780 cfm and has vacuum secondaries.
Thoughts on where to start?
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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08-14-2017, 05:09 PM
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CC Member
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Join Date: Jan 2008
Location: Williamsport,
PA
Cobra Make, Engine: Kellison Stallion 468 FE
Posts: 2,703
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Not Ranked
thats where i have my 468 jetted.......but i have 2 carbs
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Fred B
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08-14-2017, 05:16 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
Quote:
Originally Posted by fwb
thats where i have my 468 jetted.......but i have 2 carbs
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:lol:
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
Last edited by dcdoug; 08-14-2017 at 08:51 PM..
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08-14-2017, 05:20 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,005
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Not Ranked
Quote:
Originally Posted by dcdoug
Will I need to just upsize the jets or more than that? It's currently at primary jets - 73, secondary jets - 85. The 3255 is rated at 780 cfm and has vacuum secondaries.
Thoughts on where to start?
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If you use the ol' 3456 rule, you're going to need to move up to a 850 to 1000 CFM. |
08-14-2017, 05:35 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
Quote:
Originally Posted by patrickt
If you use the ol' 3456 rule, you're going to need to move up to a 850 to 1000 CFM.
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You're still running a 750.
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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08-14-2017, 05:37 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,005
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Not Ranked
Quote:
Originally Posted by dcdoug
You're still running a 750.
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But I only have 447 cubes and drive like an ol' fart.  |
08-14-2017, 05:42 PM
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Full Blown Member
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Join Date: Sep 2008
Cobra Make, Engine: KMP 427 S/C, Twin Paxton 511 FE
Posts: 2,594
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Not Ranked
Quote:
Originally Posted by patrickt
But I only have 447 cubes and drive like an ol' fart. |
...and a Powerglide.
At least that's what Chas told me. 
__________________
rodneym
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08-14-2017, 05:53 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
Quote:
Originally Posted by patrickt
If you use the ol' 3456 rule, you're going to need to move up to a 850 to 1000 CFM.
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Yeah, that would put me at around 900 CFM. Hmmm. Sort of hate to get rid of the 3255, but selling it would easily buy a new carb and probably go a good way toward paying the extra for that forged crank that Brent is laughing at me for.
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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08-14-2017, 08:11 PM
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CC Member
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Join Date: Jan 2012
Location: Katy,
Tx
Cobra Make, Engine: ERA#134 427 Ctr oiler 2x4's
Posts: 51
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Not Ranked
Brent sure is being patient with you guys. Go ahead and call him and order the damn rotating assembly and matching cam and get on with getting on the road to the next thing you're gonna break. Sheesh!
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08-14-2017, 08:18 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
Quote:
Originally Posted by LG57
Brent sure is being patient with you guys. Go ahead and call him and order the damn rotating assembly and matching cam and get on with getting on the road to the next thing you're gonna break. Sheesh!
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Brent's patience will be rewarded. He spends more time helping me than most, that's for sure. 
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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08-15-2017, 06:10 AM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,005
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Not Ranked
... and I'm going to throw in a beige paint job to help Doug out. |
08-15-2017, 06:19 AM
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CC Member
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Join Date: Jan 2012
Location: Katy,
Tx
Cobra Make, Engine: ERA#134 427 Ctr oiler 2x4's
Posts: 51
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Not Ranked
Also known as caca brown.  |
08-15-2017, 09:22 AM
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CC Member
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Join Date: Jan 2011
Cobra Make, Engine: Hi-Tech
Posts: 734
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Not Ranked
I am running a 482 but wanted the Lemans look. I bought Holley 850 and sent it to Joe Bunetic to have the Lemans bowls added and to de-choke, de-horn and replate the finished carb after tuning it to my displacement, compression ratio and cam specs. Barry R. used the carb to dyno my engine. Looks the part but gives you all the gas you need:
Video: Survival Motorsports And 482 Cubic Inches Of FE Fury - EngineLabs |
08-15-2017, 09:52 AM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
Quote:
Originally Posted by Mongoose930
I am running a 482 but wanted the Lemans look. I bought Holley 850 and sent it to Joe Bunetic to have the Lemans bowls added and to de-choke, de-horn and replate the finished carb after tuning it to my displacement, compression ratio and cam specs. Barry R. used the carb to dyno my engine. Looks the part but gives you all the gas you need:
Video: Survival Motorsports And 482 Cubic Inches Of FE Fury - EngineLabs |
Nice. That's a mech secondary carb, right? I will say that the Lemans bowls are cool, but are a bit of a PITA. I think I will probably forgo them this time around.
I'm thinking of going with a Holley HP 850 or 950 carb. They have the classic look, but no air horn. I liked my vacuum secondaries, but they only offer mech secondaries in larger than 750 CFM unless. There is a classic series 850 that has vacuum secondaries, but also has the air horn, which I'd rather lose.
I know that Brent loves the Quickfuels, but I want the old school gold dichromate finish.
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
|
08-15-2017, 09:56 AM
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CC Member
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Join Date: Jan 2011
Cobra Make, Engine: Hi-Tech
Posts: 734
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Not Ranked
It is mechanical, which I know is not correct, but I didn't have a lot of options with the larger carbs.
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08-15-2017, 10:14 AM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,005
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Not Ranked
Quote:
Originally Posted by Mongoose930
It is mechanical, which I know is not correct, but I didn't have a lot of options with the larger carbs.
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I watched that vid. Man, that is a big-ass looking carb compared to my Holley 4160.  |
08-15-2017, 10:15 AM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,591
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Not Ranked
Quote:
Originally Posted by dcdoug
Nice. That's a mech secondary carb, right? I will say that the Lemans bowls are cool, but are a bit of a PITA. I think I will probably forgo them this time around.
I'm thinking of going with a Holley HP 850 or 950 carb. They have the classic look, but no air horn. I liked my vacuum secondaries, but they only offer mech secondaries in larger than 750 CFM unless. There is a classic series 850 that has vacuum secondaries, but also has the air horn, which I'd rather lose.
I know that Brent loves the Quickfuels, but I want the old school gold dichromate finish.
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Uh, is your carb "buried" in a turkey pan with a Stellings air cleaner? If so, who cares what your carb looks like? Oops, I forgot, you have a CSX with a vintage sideoiler. My bad. |
08-15-2017, 10:19 AM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,591
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Not Ranked
Quote:
Originally Posted by patrickt
... and I'm going to throw in a beige paint job to help Doug out. |
And ruin your "unicorn" status? |
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