I know i should have headers, but im runnin on stock manifolds... well here is my story...

I have a 98 Z28 w/ a TR 230/224 cam, borla catback, LID, ported MAF, MAFT translator, K&N....

I am making LESS power than i was before i put in the cam.... I don't understand... i can get my settings better using AUTOTAP and hte MAFT and everything looks ok...

is it possible that the stock manifolds are actually making me loose power w/ the cam?!?

Dave
Maybe i should just go back to an LT1

 

Dave,

I have this same cam and my Hot Rod flys.

IMO- you need headers and tuning.

Give Geoff at Thunder Racing a call. He will help you out. Tell him Coach sent ya.

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Coach 02 Z/28 M6 Drag Racer
Mod's: Done, I have them all!
"A bad day Drag Racing is better than a good day working"!

 

did you have the PCM reprogrammed? if not, that is your problem.

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