I have a friend that has a RM 555 in his camaro runs low 9's. He drives it on the street once in awhile. I wouldn't call it a street car either, but would like to do something close to that. They aren't driven very many miles on the street. At those power levels, can't be very streetable. Anyways, those were some goals I was thinking the car could fit into that class someday, since I want to upgrade my 502 700hp pump gas motor which is not all that streetable either. Maybe my goals are not realistic...Car has run a 9.23, so didn't think what I am trying to do is to far out.
I can see why people do buy the GM572 now though. Too many decisions to make. Just buy it and install it and be done with it. I still don't feel you are getting much motor for your money though and not much hp. There was a post over at speed talk about pump gas motors and one said they got 850hp from a 572/10.2 motor. Sounds a little high for that cr...
I have my Dart 345 pro1 heads (fresh), but don't think they would work that good on a big motor?