do you have the pro1 or pro2 cams? the pro2's like 12:1+ and with 93 octane, can still be used for daily driving with good tuning. the pro1's you can get away with 11:1+. i like the cp's myself, my friend has a set in 84mm 11.5:1 and they're a work of art. if not cp's then wiseco is next on my list.