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Paul Ceasrine · 05-03-2009, 09:15 AM

Steve,

Thanks for the F/Stock factor rating. brings back memories of when stock class racing was fun. Bracket racing just took the fun out of us
4-shift stick guys,
Anyway, I found an old Hot Rod magazine with 1966 NHRA info in it.
NHRA's intention in 1966 was to help rate the classes for the new
1966 model year cars, as oppossed to just regular factoring by .50 or
.70. That's why the factor rating is all over the board for 1966.
A/S was to be set for 66' street Hemi's, 327/350 HP Chevy II's,
427/425 HP Biscaynes and 427/425HP Galaxies.
B/S was for 396/375 HP Chevelle's.
C/S was for 389/360 HP GTO's and 400/360 HP Olds 442's.
D/S was for 289/271 HP Hi Po Mustangs.
NHRA's intention was to try to balance out the new 1966 cars into
specific brackets. Of course, everything got messed up over the
years.

paul

05-03-2009, 09:15 AM	#106
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: Whither 1966 D Darts for Stock Steve, Thanks for the F/Stock factor rating. brings back memories of when stock class racing was fun. Bracket racing just took the fun out of us 4-shift stick guys, Anyway, I found an old Hot Rod magazine with 1966 NHRA info in it. NHRA's intention in 1966 was to help rate the classes for the new 1966 model year cars, as oppossed to just regular factoring by .50 or .70. That's why the factor rating is all over the board for 1966. A/S was to be set for 66' street Hemi's, 327/350 HP Chevy II's, 427/425 HP Biscaynes and 427/425HP Galaxies. B/S was for 396/375 HP Chevelle's. C/S was for 389/360 HP GTO's and 400/360 HP Olds 442's. D/S was for 289/271 HP Hi Po Mustangs. NHRA's intention was to try to balance out the new 1966 cars into specific brackets. Of course, everything got messed up over the years. paul