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2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
should be this but I dont know why its a philips head. Have yo pulled it out? count the turns in until it seats then tak it out in case it is the same as the video
From: At my Bar drinking and wrenching in Lafayette Colorado
Looks like you are working on a commercially rebuilt carb, and the commercial builder has removed the stock, correct APT adjuster and installed a phillips screw from their junk barrel in its place. It will work fine - it's just not "correct." There will be a ton of other things on that commercially rebuilt carb that won't be correct, either, so you have some work to do. I can see, among other things, that the builder has removed the stock IFR tubes and replaced them with his "generic calibration" aftermarket tubes, which is a good sign that he has also probably plugged the idle air bypass holes with lead plugs as well... you better check it all...
The APT adjuster should look like this:
It's also shown in my post that you refer to above:
E-mail me for my "Commercially Rebuilt Q-Jet Problems" paper for a list of just a few of the many things that you can expect with that commercial carb.
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Originally Posted by lars
Looks like you are working on a commercially rebuilt carb, and the commercial builder has removed the stock, correct APT adjuster and installed a phillips screw from their junk barrel in its place. It will work fine - it's just not "correct." There will be a ton of other things on that commercially rebuilt carb that wont' be correct, either, so you have some work to do...
The APT adjuster should look like this:
E-mail me for my "Commercially Rebuilt Q-Jet Problems" paper for a list of just a few of the many things that you can expect with that commercial carb.
EMAIL Lars.......if it isnt too screwed up he can fix it...thats his email
Neither Cliff Ruggles or me will work on those messed up commerically rebuilt carbs. Unless it's a rare '68/'69 427 carb or a Pontiac Ram Air carb worthy of unlimited cost and effort, the commercially rebuilt carbs generally cannot be saved within any reasonable cost constraints (unless your time is worth nothing, you have the ability to identify what's messed up/incorrect, and you have a pile of correct and original spare parts on hand). Occasionally, you might get lucky and be working on one that hasn't been severely hacked - it could be salvageable, but the odds are against you.
Lars
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