Help with 340 compression + cam change

Yes, that would be about right and agrees with computing the numbers from 1/2 stroke, rod length, and CH; that's the number used in my computations. Again, something is not matching up with the compression numbers.... has the engine been running / can it run? The take numbers after running if possible so the lifters are all pumped up properly and closing the intake valves at the correct angle.

BTW, if you run DCR computations with the cam numbers, the intake vavle closing angle listed is for .050" lobe lift, which is not what is to be used when doing DCR computations. You use intake closing angle based on 'advertised' info for most DCR calculators. IIRC, the one that Comp has/had online is the only one I know of that may use .050" duration numbers....

BTW, can you explain a bit more what you want achieve? More 'snap' on the street at lower RPM's or ????? For sure, there are much better cams for that, with better lift to duration ratios.

BTW, did you mean to say '360' balancer?