72GTO,
I hope you did some research prior to having a local shop "rehaul" (do you mean rebuild or overhaul, as the two are NOT the same). Building the Pontiac is not "rocket science", but someone familiar with building small block Chevys will ruin the Pontiac. They'll try to make it rev, and then complain it won't, and blocks the rods trying.
Get Jim Hand's new book (I believe I've pointed this out before) "How to Build Max-performance Pontiac V8s". Don't let them start on it without doing the proper research FIRST! If you can't find one of the books, e-mail me, and I'll hook you up. (cvms@cstone.net)
Jim