Champ561

I want to boos tmy car but my compression is to high. Just wondering is there a way to lower it so I can boost like 8lbs? Its at 10.25:1 right now. Thanks

silver91gt

different pistons, thicker head gasket, bigger combustion chambers.

Champ561

All of the above of or are they just choices? I remember hearing someone say about the head hasket just wasnt sure if is was realiable.

Mowin8603

ya all those will help, but pretty much just get some new heads.. stock GT40's i think bring the compression to 8.5:1.. i think correct me if im wrong. but thats a way to go, also cheaper.

EDIT: depending on what pistons you have, or if you also have something different than a 302, like a stroker or something.

MACDRIVE

I agree. Swapping the heads for some with larger chambers, might just do the trick. I don't think thicker head gaskets will bring you down far enough.

frdmstng1986GT

gt-40's off an explorer will do that, not ones off a cobra though.