max compression on pump gas\steel cylinder head\241 @ 50 cam

Less combustion area(smaller) = more atomization (stirring effect)and higher efficiency=LESS TIMING.

Large combustion area=less atomization and less efficiency=MORE TIMING.

I am going to check my cylinder pressure again on both my 318 and 360.
I will use a different gauge this time.
They both checked out to 148psi to 150psi and it's making me wonder if the gauge is bad.
Two completely different engine combination's and the same pressure???
Going racing tonight and will be changing some plugs, so it's a great time to re-check it.