It is a matching numbers motor and tranny with build sheet. The Rochester carb was replaced by the PO who put on a new Edelbrock with electronic choke which made all the difference in the fine tuning. Plus he installed a new Edelbrock aluminum intake. I did points, condenser, cap, rotor and plugs so that I would have a benchmark on it. My 1970's dwell meter and timing light died on me. So it was time for a new meter and light and she is now fine tuned to perfection. She has factory AC which was converted from the R12 Freon to the R134a system. I replaced wheel bearings and the cooling system hoses / anti-freeze to have a benchmark on it. Besides the cruising my wife and I attended the shows that were not cancelled. It runs so nice and sounds so sweet. Thanks for asking...