Wow, we must have a bunch of rich mo-fo's on this board... or a bunch of guys just looking to get into debt, haha. Seriously, I say race only basically... cause I see no reason to buy that unless your going 30+ psi, and who the hell needs more than 30psi on the street? I mean, the 420a block has been tried and proven for ~500hp now, 11 seconds on slicks, ... and if you happen to blow the mofo to hell... a replacement block is pretty easy/cheap to find... and if your not satisfied with an 11 second street car, you're just looking for an early death, haha.