thanks mtber for the info... hmm.. i guesss i was wrong about the p30.. i guess its just stock haha. So if my p30 is stock...... and the p30 was MADE for the B16's... that means i can take it to 8300 w/ no problem right??
or does the JDM spec P30 and the USDM p30 have somehting diff since JDM has 10.4 and the USDM has a 10.2 compresion ratio?
i just dont want to float a valve lol...

thanks