Current GM Q-jet Rules

[oldskool]

Originally Posted by J.R. Haddad

Casting number of the carb no longer matters, measurements do. J.R.

OK, thanks !

That brings up more questions. Since this info is not mentioned in the Class Racer Info guide, exactly when did this new rule go into effect ?

Is the rule only mentioned in an official NHRA rule book, or is there another source I can find online, if I know the correct link ?