Re: who here races with exhaust manifolds?
Last dyno session I saw was 35 HP between headers and exhaust manifolds. I think it is more if the carb was tuned for the headers. The cam is a 143 dimension spec cam. The more horsepower you make the more it hurts.
I run a 4 speed with the manifolds. Shift a 6000 to keep it real.
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1970 LS-6 Chevelle
Going fast on Goodyear Polyglas.
12.21 @ 115.32 PSMCDR 2009
12.24 @ 114.30 PSMCDR 2010
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