I wasn't thrilled when I looked at the pistons. They are not a dome. They are a dish. The dish on the LPG piston is 14 CC. I'm not going to be able to get the ratios I wanted. The machine shop said he has filled in the top of the piston with welded. The piston on the left is low (7.3?) CR, center is high (8.0) CR, right is the LPG (9.0)

http://home.earthlink.net/~lggriffin/pistons.jpg

Larry

Ignorance can be fixed Stupidity is forever