Re: How important is Quench???
IMHO quench is one of those things that if you want every bit of power out of your engine...then it is important. I like to use FelPro "Blue" head gaskets and for my 327 they were .041" thick. On my not decked engine that equates to .066" definately not optimum, but it works. If you are building your engine, Measure how far down your pistons are. If it's not broke... don't fix it. Again IMHO.
69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 TPI transmission, 12-bolt w/Eaton 4.11:1