rebuilding a 273 180 HP engine

I had mine, formula s hipo version rebuilt and the egge pistons (10.5:1) after I waited for a few months for egge to cast up the new pistons, the turned out to be about 9:1. The machine shop checked and rechecked it, and even played with different gaskets. SO if you buy the low compression egge pistons, it will be extremely low. On the cam, good luck, the solid lifter ones (stock) are no longer available but Schneider cams, http://schneidercams.com/solidliftercamshafts-10.aspx makes one with a little more lope to it. A couple of more things that are different, front timing cover is a little different, I would take it off and check the passages for corrosion, my old one was welded up and smoothed out then sealed from the inside, there is also a separate timing tab, different water pump as well. And last but not least the harmonic damper is specific for some models.