Stock 1979 360 with Speedmaster head question

no fel pro is .028
what nm just said after I wrote the above
the tighter quench (if that's what you are doing) will cover the slight compression bump
no quech and you have to drop at least half point
(excpt with a race only race gas build where you never give it throttle at lower revs and shift down going up hills)
What is quench exactly?? I see you mention it alot help me understand