Thread: 1st lumpy idle build, and cards I've been dealt

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Originally Posted by techinspector1

Keep the Q-jet. It's the best design ever devised. The tiny little primaries allow excellent throttle response and mileage, while the huge secondaries feed the motor when you step down on the loud pedal. Best of both worlds. Get some books or DVD's and learn how to tune it. You'll end up with the best carburetor there is and add a little to your own expertise.

Cliff Ruggles is one of the Q-jet gurus that I would recommend for information.
http://www.cliffshighperformance.com...history_1.html

AND ? Ditch the Performer intake. Use RPM or Stealth. )

Hey Tech Q-Jet's dont Bolt Right onto RPM's and Weiand Stealth's . What Book did you take that From ? Don't buy that one .

Agree with Denny, that one will make more hp and torque from idle to 6000 than any other manifold you could bolt on.

Of course they do Tango -

Chevrolet 262-400 Small-Block V8
PERFORMER RPM Q-JET (1500-6500 rpm)
Designed for 1955-86 262-400 c.i.d. Chevy V8s for spread-bore (Q-Jet) or square-bore carbs. Delivers maximum power and a broad torque curve for high-performance street. Carb pad will accept square-bore carbs without adapters. Performer RPM Q-Jet has same provisions as #7101 (see above). Will not fit under stock Corvette hood.

The Weiand Stealth is square flange only, however; the 8004 "Avenger" is a dual plane spread bore mainfold.

The Q Jet has been used in very small displacement motors to big blocks right from the factory. The Small primaries allow this. SMI (Sean Murphy) has his QJ's on cars for stock appearing drags class running in the 10 second range. For a street car the carb is hard if not impossible to beat. The comment that lets hear the down sides to QJ's..there really arent any expect they require more knowledge to rebuild and tune properly. Im with Tech...for a primary street car ...anywhere from 265 to 496 you cant beat one set up correctly. JMO.

Im sur eoyu have noticed the engine should run with what you have but definately isnt optimum for a low compression smog head engine with a stock stall speed and rear gears