1971 Match Race ~ 'Duster 340' vs. 'Boss 351 Mustang'

Pretty amazing how strong the Ford hi-comp 351C 4bbl's and 429's were until they dropped the compression in 72'. After that, for the most part, they were absolute stones. In my opinion, they suffered the worst from the compression drop and emissions laws of all the muscle V8's thru the early/mid 70's.