ok i just put a 04 type r engine in with a full high compression valve train and JE forged pistons. my compression ratio is 11.2:1 with a double layer mugen gasget.....i only have 3000 miles on the beast o yeah full exhaust etc..... Q? what would be a good boost level for my engine with the CR on it...o is 93 octane ok with high CR+ high boost thanks .......thank you and i love u all .at least your cars!