Thanks for the input guys,
I will measure the clearances that I have now.
You guys are right, the 66-67 b-bodies do not have the room in the rear that the other years have. I currently have Coker redline radials mounted on 14" factory magnum 500 wheels. They don't bite good at all. I'll start looking for a set of 14" or 15" steel wheels. I believe the 15" are more common.

RF