Hp Changes announced

[Greenlight]

Originally Posted by Billy Nees

Well Brian, since you brought it up, how did the 70-71 challenger Hemi get a HP reduction in the first place? It's slow avg. in AA is -.1125 but it's slow avg. in A is -.859. Am I missing something here?

The "AA" combination was with the replacement aluminum head, and the "A" combination was with the OEM cast iron head. Only the replacement head received a HP reduction.