Not trying to attack you personally, but this setup would be a turd after around 4500. The nitrous would be the only thing to save it. We are not all god's of these cars (except for Flyin Ryan of course!), but general concensus usually rules, so take it as you will.No replacement for displacement. If i wanted a cheap fast car I would do the 351 with gt40 heads, torquer intake and a 750 cfm then hit it with a 200+ shot lol.