71 340 Compression Test

If you look closely at the numbers you can see that the TQ was worth 15hp over the AVS, and the 6-pac was worth 50HP over the AVS. That tells you that the little AVS was a total choke. It also tells you that the 6 pack rating was also nuts. Come-on 50 hp! I don't think so. And neither did anybody else, think that. Except the NHRA.
If you look at the 72 rating. It appears the the compression drop from 10whatever to 8whatever, was only 5 hp. Come-on! that too is nuts. So the point is that while these engines were powerful little buggers in stock form, with modern technology, they can annihilate those other brands. And don't believe every hp rating you read.