318 Build - Expert Review Needed

Actually you are loosing volume, as you are loosing .004 thickness in theory (.028 - .024 = .004).........AND as listed on Mancini's site the P4120094 gasket crushes at .040 to .042......the OLD P4120094 used to crush in the .024 to .028 range

64,000 thousand dollar question......are you looking to ADD volume, OR SUBTRACT volume to achieve your target compression ratio??