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Old 01-12-2005, 07:35 PM
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HSSS427 HSSS427 is offline
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Join Date: Jul 2004
Location: Alpharetta, GA
Cobra Make, Engine: ERA #414 427 s/o w. Shelby Aluminum heads, Edelbrock Performer RPM Intake, Mighty Demon 750, Tremec TKO 600
Posts: 714
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Default "I see" said the blind man.

Thanks Motorhead.

I think I'll do another dyno session and in addition to having them re-jet the carb using the dyno, we can also set the timing as well per your suggestion.

I think the base timing is set at 30 deg, and I'm probably getting too much mechanical advance. I've got an MSD AL6 with an MSD billett distributor where you can change out the springs and stuff to change the advance curve.

Next dumb question - How do I use a timing light to determine what kind of mechanical advance I'm getting right now, thus helping me figure out total advance?

I'm sure I can find the answer on the web or in a book, but CC seems to be a much better source.

I've also got a friend who's offerring me a free Crower cam with the following specs: 255 duration intake, 260 duration exhaust, .591 exhaust lift, .579 intake lift. If I change to this, what else am I then going to have to adjust/change to get the desired results? Concern per the original post is that my compression is "supposedly" at 9.5:1. Will I need to shave the heads and/or change pistons to up the compression in order to get the cam to be effective?
Thanks!
Scott
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