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Tony Curcio · 01-07-2010, 07:41 PM

To clarify the question- most Q-Jets have a booster as well as a ring around the booster. The only exception is a Pontiac Ram Air carburetor from one year only (1971). That particular throttle body is sought after by collectors, and the last I heard, cores were selling at about $1,000.

The removal of this ring adds about 50 cfm to the flow, probably a lot more than changing booster sizes or angles in a Holley. The use of the Ram Air throttle body would have clearly been illegal before the rule change that allowed any carb with the same throttle blade and venturi diameter. It is less clear now, as the rule book addresses only the throttle blade and venturi sizes.

Danny- when did you have this conversation with an NHRA tech man- recently?

01-07-2010, 07:41 PM	#6
Tony Curcio Member Join Date: Mar 2002 Location: West Chester, PA Posts: 271 Likes: 1 Liked 4 Times in 1 Post	Re: legal qjet To clarify the question- most Q-Jets have a booster as well as a ring around the booster. The only exception is a Pontiac Ram Air carburetor from one year only (1971). That particular throttle body is sought after by collectors, and the last I heard, cores were selling at about $1,000. The removal of this ring adds about 50 cfm to the flow, probably a lot more than changing booster sizes or angles in a Holley. The use of the Ram Air throttle body would have clearly been illegal before the rule change that allowed any carb with the same throttle blade and venturi diameter. It is less clear now, as the rule book addresses only the throttle blade and venturi sizes. Danny- when did you have this conversation with an NHRA tech man- recently? __________________ Tony Curcio 1860 STK Last edited by Tony Curcio; 01-07-2010 at 07:47 PM.