there are 10 second sbc's all over the track but on the street its gona be tough to drive on the street.you can do anything with enough $$$.but theres no way to hide that much power.when it comes to hp you can build a big block cheaper than a sb. after you pass 450 hp or so on a sb it gets costly. the big block is cheaper to build after that point.but you can get carried away with either.i think the big block will last longer too.not bein as radicaly built.you can get 500 hp out of a big block purdy dang easy.if you want a sb go for it. its your $$ and time.