More Sideways than forward..

scatter shield/bell housing clearance is extremely tight to nonexistent in the tranny tunnel. flattening pinch weld gives you more room and keeps it from rubbing bell housing. Lowering K gives you more room in trans tunnel, hood clearance, blower motor etc, I have also heard it helps steering geometry. Wheels look like monoque wheels. Heads up if they are, they are very fragile and break easily in a non track setting. They were a race only wheel not designed for potholes and speed bumps. How are you going to get the overdrive to fall in love and mate to a big block bell housing. The bearing O.D is different. If you want to you can turn one down in a lathe to non OVD bellhousing O.D. you must use cap screws instead of bolts to hold the bearing retainer on.