Important if you run D-H/S or SA

[jmantle]

Originally Posted by Mark Yacavone

AMC Edelbrock R4B (same as LD4B except manifold base) has an AMC p/n
It is also in SAE documentation
Approved as superseded part by NHRA on request of Chrysler then taken away 6 months later by NHRA.
So how much longer will this one be allowed to run its course?
Exact same sequence of events and documentation occurred for approval.

I get the impression the manufacturers either have never read the rule book or really don't care what it says. A big name racer asks for something to get approved, their buddy at the manufacturer goes for it, NHRA buckles.

Jim Mantle V/SA 6632