1972 Stock weight breaks
 

Can someone post the 1972 stock weight breaks ?
I have 72 rule book that i can't get at now. Want to see
how badly the car was classified . TIA Gerry

Re: 1972 Stock weight breaks
 

1972 was a strange year.
SUPER Stock breaks were the same 1970-74:
SS/A=6.00
SS/B=6.50
etc
SS/H=9.50
The rules were pretty steady too AFAIK.

For STOCK, 1972 went back to almost pure stock so the rules were very different from 1971.
A/S=9.00
B/S=10.00
C/S=11.00
etc
M/S=21.00
N/S=22.00
O/S=24.00
P/S=26.00
Complicating things were that the 1972 new cars had ONLY NET ratings, not gross and not gross and net like many 1971 cars had.
All of the NHRA breaks & factoring up to 1972 was based on GROSS HP so it was a big dilemma what to do with NET HP - and how to run eg a 330hp GROSS 1971 car against a 270hp NET 1972 car when it might well be the exact same car & engine.

I dont know exactly what they did. From today's excel files for 1972, it looks like most of the 1972 "net" ratings were factored UP by NHRA to a guess at those engines "GROSS" ratings. Messy.

So you'd have to know what car/engine you have & what exactly NHRA did to factor that engine - in 1972 race year.

Re: 1972 Stock weight breaks
 

I dug out my 1972 Rulebook to answer this question but someone beat me to it. I couldn't help but notice how small and thin it is!

Re: 1972 Stock weight breaks
 

Here's another place to put out another APB for a '72 or '73 NHRA "Factor Finder" publication, preferably both.

So, who has a copy of one or both these "Factor Finder" publications ? :confused:

Anybody know any of the older racers who were racing back in '72 & '73, who might have a copy or know someone else who might ? :confused:

Anyone know of any online copy that can be accessed ? :confused:

Does anybody reading this have any idea how I could get a look at one, or have someone look at one of these for me ? :confused:

HELP !!!