[Excaliber]

No question about that Rick! Alloy will certainly allow for a higher compression. I specified my custom pistons for 'quench', something unheard of in 1965, and impossible to attain with 'stock' FE pistons. This was to improve the combustion chamber 'burn' as much as possible. It was a HUGE leap forward in combustion chamber technology when Honda first introduced it's 'swirl combustion' design years ago. That was about as revolutionary as the original Hemi head design in the 50's. Combustion chamber design has come a LONG way since '65.