what does driveable mean....??? i've got a 420 bhp (well lane rollers... ) it's on standard head/cams 7.5:1 and i think it's easyer to drive round town due to the fact that the turbo comes in a bit later...dont mean to sound like a tart but even our lass likes it better now...she knows when it gets above 3000rpm it's going to get scarey.... and when people say ooo isn't it a bit lagy...no.....just change gear