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...I've been thinking vacuum leak, but can't find one with the rubber hose :stethoscope trick.



Any chance you've got cracked/damaged vacuum line or intake leak? Have you put a vacuum gauge on it to see what the manifold vacuum is doing?

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Can't change the idle spraying carb cleaner around the carb base. I've tried resetting the idle bleeds everywhere from 1.5 to 3.0 turns off their seats, and all I get is a "hunting" idle, that gradually gets worse as the engine warms up. Then eventually it stalls.



Does adjusting the air/fuel screws change the idle at all?


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I did a search of the site, and found some folks who are actually running ThermoQuads, so I'm hoping that by way of a "welcome to the club" one of those folks might have a tip or two for me.



Welcome to the TQ club!


If you give the metering rod tree screw a 1/2 turn clockwise, does your idle improve?