Grimace5.0

Heads....

w8less

i said it was gt40x heads aluminum aftermarket heads do u think he didn't put somethign together right? maybe he doesn't have full compression? a/f ratio is off? i could try and get the dyno results

grabbem88

what's the timing at?...the heads might be hurting it....but that is debatable.

grabbem88

my a/f was 12.8........the cam i'm selling is close to a trickflow...so i think tweaking,and maybe a little more break in?

91hatchgt

Heads are killing.... GT40 heads suck, just not as much as the E7's.

stanglx2002

did the guy calibrate the dyno for the car I hope? Did he have any problems when it was on the dyno like valve float?How is his idle does it jump around or go down very slowly. he have a vaccum leak that you cant hear

88BlueGT

It could be many different little things but I would tell him not to expect much more. 300rwhp (give or take 10-15) is right around where it should be. There could be small things holding him back but thats about right.