does anyone know compression ratio on the 012 Assaults?I read somewhere the 011 was 9.4,then someone on here said 12.3 so what is it?Doesn't sound right but that's what i saw...I have an 012 Assault and was thinking about putting an aftermarket head on it, saw there was 12.5 and 13.1...I talked and heard now from a few ppl that there compression is around 115-118psi and if i went to the 13.1 it would bring it up to that 130-140...On that note if i did wanna go with the higher compression head would i need a fuel programmer?