This Icon piston would be an excellent choice, if this price is correct.
http://www.cnc-motorsports.com/icon-ic9953-030-fhr-forged-flat-top-pistons-4-350-bore.html

This piston and a TFS 240 head at 78cc yields 10.68:1 and would put you way north of 500hp.

Last edited by Moparteacher; 07/01/16 07:48 PM.