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Old 10-08-2018, 02:01 PM   #11
SilverMiner
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Join Date: Oct 2005
Location: North Idaho
Posts: 335
Re: Wanna-be Quadrajet guru

Quote:
Originally Posted by Greasey Harley View Post
I recently picked up a new hobby.
I decided that I want to be "That Guy" when it comes to quadrajets.
A buddy of mine gave me about a dozen Q-jet cores that he had lying around and that sparked my interest.

Armed with these cores, A book by Cliff Ruggles, some papers by Lars Grimsurd, some precision drill bits, an ultrasonic cleaner, and a Genuine "Barker Un-warping Tool" I think I stand a decent chance of actually tuning some Rochesters.

I have successfully rebuilt about a dozen marine Qjets, when I had my boat repair shop. That's not the problem. I want to figure out how to re calibrate carbs that were choked down by the EPA and make them actually preform for a given application.
The first victim is already on the bench
I've wandered down that road myself lately and have found it to be very rewarding. It's enormously satisfying to get a Qjet to run right, but now I shake my head at all the unnecessary struggles I had with them back in the 80's. They really are excellent when clean, calibrated, and operating within specs. It also really helps now that I'm older to be able to play with a rig that isn't my daily driver required to get me to work in the morning.

So far I've completely relied upon Cliff Ruggles to select and deliver the proper calibration materials such as jets and metering rods. Not the cheapest alternative, but a certain path to success. Really can't say enough good things about that shop, and his forum is an invaluable resource as well.
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1980 K10 Suburban Silverado, original 350 w/Qjet swapped to 406sb, TH350C swapped to TH400/205
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