NHRA Racing in 60's & 70's - Modified Production
Anyone have an old rulebook, or recall, how they classified non-stock cars into Modified Production ?
As I recall if something like a 1964 Belvedere had a 383 and went from 1 - 4bbl to 2 - 4bbl's it could run Modified Production. How as the class determined ? Weight / cubic inches?
I think 1 - 2bbl to 1 - 4bbl , 1 - 4bbl to 2 - 4bbl's, or a switch to 3 - 2bbl's could land you in the MP running. No superchargers, no NOS.
Any breaks on the classes ( V-8) would be very much appreciated.
Thanks,
Ted
Anyone have an old rulebook, or recall, how they classified non-stock cars into Modified Production ?
As I recall if something like a 1964 Belvedere had a 383 and went from 1 - 4bbl to 2 - 4bbl's it could run Modified Production. How as the class determined ? Weight / cubic inches?
I think 1 - 2bbl to 1 - 4bbl , 1 - 4bbl to 2 - 4bbl's, or a switch to 3 - 2bbl's could land you in the MP running. No superchargers, no NOS.
Any breaks on the classes ( V-8) would be very much appreciated.
Thanks,
Ted