The seller and his dad were pretty heavy into Drag racing- they had a large shop and a small junk yard that was full of A bodies! Lots of parts, so there is no telling. They 'built' this duster for the son when he was in high school but pulled the engine that was in it when it was sold to me (as we agreed on). It was a high compression radical mill that I really didnt need or want- and he ran some 12s with but not on a regular schedule.