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Old 09-07-2014, 10:24 AM   #4
nighttowl
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Drives: 2018 ZL1 1LE
Join Date: Dec 2011
Location: TX
Posts: 1,913
I have the cam and heads along with a underdrive pulley, roller rocker arms, vararam tune intake, headers w/3" exhaust and a 3200 stall converter, Rear wheel HP went up 140 hp. conversion from auto to manual trans gained another 25 hp.
dyno chart compares auto vs manual on the car with no other changes.

Keeping in mind that this is a "mild" cam, my personal opinion was that the heads were a great deal.
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2018 MBM ZL1 1LE - 652 rwhp, 588 rwtq SAE
2014 CRT ZL1 574 rwhp, 537 rwtq - SOLD
2010 IBM SS Camaro VVT L99 w/ TR6060 swap, 489 rwhp, 444 rwtq - SOLD

Last edited by nighttowl; 09-07-2014 at 10:35 AM.
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