Current GM Q-jet Rules

[older racer]

hello, question? does the inlet have to be the same location? on any carbs? just curious. thanks

[Mark Yacavone]

Originally Posted by older racer

hello, question? does the inlet have to be the same location? on any carbs? just curious. thanks

No

[oldskool]

"Replacement carburetors permitted provided they are same model, type,throttle bore, and venturi size."

OK. I reckin the words "same model, type" just mean they have to be a Q-jet type carb, and not necessarily a Chevy Model, or Buick model, or whatever car brand you race, or one specific Edelbrock number.

I suppose it only matters how the tech guys interpret the rule. It makes sense to me, since I don't see any big advantage to a particular Q-jet. But then there are lots of very similar parts, from different year cars, that would not provide an advantage, but are not legal.

Don't know if more of these similar, but different year parts will become legal, as parts for the older cars become more scarce, or not. ?

[J.R. Haddad]

OLDSKOOL, you are overthinking this topic. ANY q-jet as long as it
measures correctly. PERIOD. J.R.

[oldskool]

Originally Posted by J.R. Haddad

OLDSKOOL, you are overthinking this topic. ANY q-jet as long as it
measures correctly. PERIOD. J.R.

Got it. Thanks !

[oldskool]

" When Edelbrock was a Major Sponsor with the Q-Jet replacement carbs, NHRA changed the rule to allow Edelbrock to sell more carbs..."



So far, I've never read exactly what years the Edelbrock Q-jets were made. I did find this article that says they bought a new one in 1997.

http://www.hotrod.com/articles/edelb...or-replacment/

And this site says production was stopped in around 2002.

http://quadrajetparts.com/edelbrock-...tors-t-10.html

So, I assume production began in the early 1990's. Does anybody know, for sure ? And, the exact year they were made NHRA legal ?

I know now that any correct size Q-jet is legal. But, I'm still curious about the E-Q-jets & the rule change. I was out of racing so long that before I learned to use a computer, a few years back, I'd never even heard that Edelbrock sold Q-jets. And, by then, they'd been out of production for several years. So, ya'll please excuse my ignorance on this subject.

Thanks !

[Hacksaw]

Hey Oldschool: I was told by a very reputable QJ carb guy that he did not see any performance difference between an Edelbrock or GM 207 carb and he preferred the Edelbrock because usually they were nicer cores to start with. Good time to check the classsracer parts section. Good deal there on what you need.

[Bob Mulry]

When Edelbrock was a Major Sponsor with the Q-Jet replacement carbs, NHRA changed the rule to allow Edelbrock to sell more carbs......

The B-O-P guys could by an Edelbrock carb to replace the front inlet style....

The phrase "stock inlet location required" was removed from rule book…….

Show me the money and I'll show you a rule change.....

In Stock AFTERMARKET disc brakes, aluminum seats, intakes, heads and radiators, transmissions, 6" clutches, 2 year seat belts and on & on & on......