[Woodz428]

In 1970 as they were switching to the Cleveland, you could wind up with either a Windsor or Cleveland (only the 2bbl version), all 4bbls were Clevelands but the Windsor was readily mixed with the newer 2bbl Cleveland that year. If you ordered a 351 2bbl, unless you actually stated Cleveland ,it was anyones guess what you received until it arrived. It was my error on the 302, it didn't become the Mach I base engine until 1971. While the code was in the serial # of all the 1970 (and probably later ones as well) models, the data tag has much more info, much the same as the print out sheets under the seat/carpets.