Hello I'm new here ,,, had a question for you seasoned big block guys. I got a 67 chevelle Malibu nice car , but it has a 6 cly. In it an I was going to put a zz 572 in it but is a tall deck motor and can't use my hood. I can get a 454 from a man I know that came out of a 72 chevelle. Don't know if 2 bolt or 4 Or I can go with 502 and put a 150 shot on it , don't know a lot about them , I am wanting to run pump gas but want a stout street runner