Looks like everyone is at the big event in Texas, so I'll give you my 2 cents. Yes, the LP propane pistons from Fedral Mogul (980P I think is the number) are available, your machinist can substitute them in a rebuild package for very little $.
Your on track with the carb, intake, ignition. Yes, balance everything including flywheel and pressure plate if running manual. Have your harmonic balancer rebuilt or go aftermarket.
Most will tell you NOT to zero deck. Lumps and bigger valves are cheap power, and easy to install- Twisted 6 or T Lowe can set you up with lump kits. Im using a dual pattern cam from Schneider Cams, there are several cam providers.
Tom Lowe did dyno tests last fall, see that link, and contribute to his efforts and he will provide some good data.
There is a ton of 292 info here, just try to remember it all! Get Leo Santuccis book.

Last edited by Heater63; 06/17/10 02:07 AM.