[mockingbird812]

COPO Novas ('70) could be ordered with the TH400 or M21. I may have read that Pete Simpson's Cananadian delivered COPO Nova was an M20 car??? , but if a manual tranny was ordered, the rule is it would come from the factory with the close ratio, M21. A tranny build date of Nov '69 is most likely way too early for a Deuce as they were built at GM in two batches in late May and early June.