So I decided to put in a high comp piston. While I was there, I figured I would port and polish and install a hc3 and dynatek ignition. I planned on the tech 11.5 piston but they are out of stock. I need to get my quad up and running soon to break it in before our next dune trip. My question is, is there a comparable piston to the 11.5 that I can run on pump gas with similar results. On top of the other mods I have barkers duals, pcv, pro flo intake. From what I have read, the 12.1 piston is boarderline on running with pumpgas. My buddy has one in his 700 with similar mods and hasent had any issues.