I've run quench tighter but everything has to be right. I shoot for .045 max. I wouldn't bother worrying about if it's going to be .080, you don't need a fancy piston, steel shim gasket and cut the head .040 .
The stock 383 in my dart has the piston about .002 in the hole, heads are 90cc stock, compression is only 9.2 with no quench.
