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Most problems people run in to with holleys is work kinda ok sometimes on stock engins. All out of the box carbs have to be set up to the engine there put on unless its a carb for a specifsic application. Once you put a cam etc. They wont run under 1200 RPMs run so rich it burns your eyes and the metering screws no matter how much you turn them it doesn't change anything. This is a fixable problem, and there is a step by step solution. I start with fileing the front, back, and bottom of the main body of the carb. Holleys are cast and the gasket area is not flat once they get hot the problem only gets worse.
Put in a power valve 1 to 2 inches under what your vacume is at idol.
Once you get it running again set your idol speed down. If it wonts to die befor you get to 700 RPMs theres a fix for that to. Your mixture screws when turned all the way in your engine should die. If it doesn't youll need to go thru the next step.
This is alot of writing for me I have to do this in sections and I can only do it late at nite so be patient.
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