Fix quadrajet carb, 1987 Pontiac Grand Prix 305

Found a bad choke pulloff, causing the choke to be too rich. Let's see if that fixes it.

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How To Replace Throttle Position Sensor Quadrajet Dualjet Carburetor
How To Replace Throttle Position Sensor in your Quadrajet Dualjet Carburetor. Complete detailed guide. CHECK ENGINE LIGHT - DECODE http://www.troublecodes.net/gm/ FACEBOOK GROUP! CLASSIC GBODY GARAGE https://www.facebook.com/groups/14684... INSTAGRAM PAGE! CLASSIC GBODY GARAGE https://www.instagram.com/classicgbod... GBODY HOW TO PLAYLIST https://www.youtube.com/playlist?list... Quadrajet Parts http://quadrajetparts.com/





quadrajet-cam
See 1976 Chevrolet pickup with Rochester quadrajet upgrade on SBC 350 V8. We removed the hood, mounted a camera looking down on the air horn, and took it for a spin, running wide open on an uphill grade. See how the secondary air valve responds to rpm drop at each upshift of the THM. Also included is a smoking burnout.





Quadrajet air leak fix and warped air horn repair tutorial.
How to identify a Quadrajet with a warped air horn without diss assembly or running it on a car. These tips would have saved me time and money which is why I made this video. I also discus how to repair a warped air horn and prevent your air horn from warping in the first place. If you have a whistling noise just off idle then you got some work to do. You will never get your engine tuned right, your cold start performing or decent fuel economy unless your four barrel carburetor is just right. Special thanks to Cliff Ruggles for his book Rochester Quadrajet carburetors and to my brother Adrian who spent hours on tuning and fitting. See this video for description of the technique I used to straighten a warped air horn. http://www.youtube.com/watch?v=l_SgQiVf3_0&feature=youtu.be here is a technique for re-bushing the throttle shaft without drilling. http://rmcavoy.freeshell.org/Q_Jet_bushings.html





High speed idle cam discussion
Here's a look at where and how to adjust the high speed idle cam's adjustment.




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