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Yeah you def need better heads, ported fast 90, ported ls2 TB and Long tube headers to get the most out of that cam. That is a big cam for a little 346 ci motor.
Cam is way too big! Stall is way too high (especially for 2.73a or even 3.15s)! Probably sounds great. Probably drives like crap! Running pig rich and lucky if you're getting 20mpg highway.
LS6 Manifold is the way to go. Need heads or at least some head work. LTs are a must. CAI maybe but it's not going to do anything to fix what you have now.
What are you AFRs and how much timing?
Last edited by Vega$Vette; Mar 14, 2009 at 08:07 PM.
ya that cam is really huge u should expect big #'s with longtubes and a fast 92 u r basically choking off the cam with stock heads and ls1 intake manifold...most people start their engine builds on these cars with a simple cold air and exhaust mod...i started like you on my 02 z06 with cam however i already had full exhaust and lg longtubes when i bought it