Edelbrock heads on a 340 with KB243 pistons

OK so I checked my motor and all the Pistons are sticking out .027 so with a Cometic .070 gasket I would have .043 piston to head clearance. The next step down in off the shelf gaskets would be .060 which would give me .033 piston to head clearance. With the .070 gaskets I calculate 9.658 comp. and with the .060 gasket it's 9.892


Run the .070's.

I'd bet all I have that no one has done an A-B-A test to see if .040 quench is better than .050 quench.

You won't see a pinch of **** difference. Why squeeze it so tight? To say you did it?

Much ado about very little.