Important if you run D-H/S or SA

[Frank Castros]

How many of the single four barrel NASCAR version Hemi cars run the OEM intake?

[James L Miller]

Originally Posted by Mark Yacavone

Kinda wondering about the LD4B manifold now on the 273 4bbls. Same basic manifold as the one in question here.
No gain on that one either?

I can't comment on ET, but my preliminary flow testing resulted in a loss of several CFM with the LD4B on over the bare head. The ports in the manifold were wider and taller than the ports in my 920 casting head. I suppose there are methods to fix that. I just bought some 302 castings from Terry Dye so maybe they have bigger ports that fit better? They are still in plastic bags from my trip to Detroit.

[mitch kight]

If it has a Factory number on it, it should be allowed!

[Ron Ortiz]

This is BS. How come they only want to produce aftermarket intakes for the 273's 4 bbls. Us 273, 2 bbl guys get the shaft again. They don't give us the Chevy, Ford, Mopar bonus packages. No, they just pencil in some whole combo instead. Total BS.

OK, continue with your one component objections. I don't want to hear how some of you work your tails off for some bogus part to hurt your class. You need to deal with NHRA to really get this crap straightened out.

Ron Ortiz
U/SA with the stroke of a pen

[David Lee]

Originally Posted by Ron Ortiz

This is BS. How come they only want to produce aftermarket intakes for the 273's 4 bbls. Us 273, 2 bbl guys get the shaft again. They don't give us the Chevy, Ford, Mopar bonus packages. No, they just pencil in some whole combo instead. Total BS.

OK, continue with your one component objections. I don't want to hear how some of you work your tails off for some bogus part to hurt your class. You need to deal with NHRA to really get this crap straightened out.

Ron Ortiz
U/SA with the stroke of a pen

Ron, these intakes have not been made since the 60's.

[Dyno]

Originally Posted by Frank Castros

How many of the single four barrel NASCAR version Hemi cars run the OEM intake?

The single 4 barrel NASCAR 426 Hemi is allowed to use the 426 crate motor dual plane intake with a 4781 Holley.

[Ron Ortiz]

I understand David, just poking fun at the 4 bbl crowd. NHRA let this get out of control, if they didn't we would not be having this conversation. But hey, it is their playground.

Ron Ortiz
U/SA is there anybody out there

[Coleydog]

Since Stock and Super Stock is so boring to the fans, NHRA is trying to make some excitement. They're trying to sell tickets, not caring what the racer wants or likes. Like one said, it's their game, do they really care if you show up to race? Just the peasants mumbling and grumbling again. Sounds like when they got rid of modified and gas to make the comp class.

[dartman]

Originally Posted by Greg Hill

I am happy for them. I congratulated Jerry. It was a hell of a run!

I should of said " we all should be happy for them" sorry for the " you "

[Mark Yacavone]

Originally Posted by mitch kight

If it has a Factory number on it, it should be allowed!

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.