Quote:
Originally Posted by BLT gmc
?what carb? If there are no "extra or missing pieces", I suspect you may have a gasket flipped. This can happen in some carbs when the gasket can fit more than one way. This may cover a passage and cause problems. I am assuming the air/fuel mixture screws were put back the way they were? Did you adjust the floats or are they as they were? Good luck, Bruce
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It's a Quadrajet - 17080230. I 'm pretty sure it's not the gaskets - I did try each of them both ways and they only fit one way properly. I adjusted the air/fuel screws with a vacuum gauge once I had it back on the truck. My vacuum was right around 20 inches so I left the srews alone - maybe I should try re-adjusting them?
I replaced the float, and adjusted it to the spec that I found for that carb - 7/16 in as I recall. If the float was set too low and there wasn't enough fuel in the bowl, that could do it too I guess.