horsepower

[mdross1]

I too am a Holley addict,been using them since the 60's.They like any hp part needs to be tweaked to the motor it is trying to feed fuel to.Presently have a Davinci 1000cfm dbl pmp on 460 it is incredible out of the box but just a couple of jet sizes too rich,the way Dan sends them.This spring will dail it in.It is very difficult to give an accurate hp number not knowing all the details.

[MAStuart]

Hi Guys, It seems like you don't have a lot of faith in a small block ford. I would think you could make that kind of horsepower (351ci, 350-375horsepower)with stock iron heads. What kind of a small block would it take to make my 65 stick shift Mustang to run 12:90 to 13:10? 30 0ver 302 and must be able to run on piss water, what gears too? By the way it weighs about 3250. Need to be able to drive it 150 mile round trip to the track. Thanks

[DAVID GAGNARD]

Originally Posted by littlewave

Wbulk, yeah i think 212-220, but someone said 225hp. Really! Anyone else think it's that low? I hope to be on the road in May and want to dyno it and find out for sure!! I'll pass nubbers on when I get them.

As for the Holly( I don't want to start any thing either on carbs) but I had one on my 69 Vette 350/350 hp(and yes 350hp match# car) put a new Holly on and it was horrible.

thanks litt. wav.

Showroom stock 351-W's from 1969 to 1974 were rated at 250hp from the factory with a 2 barrell carb.....later 'smog" engines were down in the 200hp range......
Add in your Edelbrock heads/intake/cam, I'd guess 300 to 325hp...
BTW: the Edlebrock heads are good out of the box,but with a few hours with a die grinder, they can be a lot better....Ever see one out of the box???? Some are terrible as far as casting crappola in the ports, it takes very little work and time to really clean them up and port match them and the gains are well worth the effort....
Ford small blocks also responde well to higher compression ratios...

Clean up the heads and cut a few thousandths off them to increase compression to say 10 to 1,add a 650 double pumper Holley and your set-up is certainly capable of 400 hp........IMHO of course.....

David

[Jerry Clayton]

I have lots of faith in the small block ford---but I don't see a 351windsor with 9to1 compression and a mild cam, whose specs are in doubt, making very much horsepower---it is a big bearing, heavy rod/piston combo and needs tweaking in about every way possible to get it anywhere

[littlewave]

Jerry I plan on hitin the dyno in May Or June hopfully I'm closer to what I think , if not it will come apart and do some of things i've herd on here.

[littlewave]

Ok time to let the cat out of the bag, this motor was built by York Sports Cars inc. 365hp/380ft-lb. Some of you where close, some way off the mark.

York Sports Cars inc. 27 years experience.

[CobraEd]

Originally Posted by littlewave

Ok time to let the cat out of the bag, this motor was built by York Sports Cars inc. 365hp/380ft-lb. Some of you where close, some way off the mark.

York Sports Cars inc. 27 years experience.

I know John York. A good guy. South of me near Richmond.


.

[littlewave]

Cobraed, yes, he is one nice guy, built my engine and transmission. I should be on the road this May can't wait to unleash that motor!!

[Jerry Clayton]

Edelbrock has a top end package 400hp, 412 torque using 7581 intake, 7182 cam, 1407 carb, 60259 heads and 1 3/4 headers

[Wbulk]

Oh, so that was a game. I got pretty close. I said, "That 280 must be advertised duration. So it must be in the 212-220 range at .050 depending if the specs were .004 or .006. I think the lower range is correct and maybe that is a tad high."
The 212-220 I was referring to was cam duration at .050. The lower range was correct.
OK, let's play again!

[Jamo]

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