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Mike Keener · 12-23-2015, 12:03 AM

Every dyno is different Dick but a reasonable figure for a 427/430 COPO is in the 810 range. A shootout 427/450 version is around 880 ish.

There again every dyno is different

12-23-2015, 12:03 AM	#10
Mike Keener Member Join Date: Apr 2002 Posts: 294 Likes: 102 Liked 25 Times in 13 Posts	Re: True Horsepower Classes in NHRA Every dyno is different Dick but a reasonable figure for a 427/430 COPO is in the 810 range. A shootout 427/450 version is around 880 ish. There again every dyno is different __________________ Mike Keener A/S B/S C/SM