383 build help one piece at a time

I ran 915's with the 1.60 valve. If the valves are good reuse them if they are iffy go 1.74, the heads are more like 80cc at least my 915 was, I would shoot for a zero deck piston with the felpro .039 gasket this way you have a nice quench even if the compresion falls around 10.25 or 10.5 the quench will still allow you to run 93 with a cam in the 220 to 226 @.050 duration. I would open up the bowls on both the intake and exhaust on those heads.