Re: Tuning SHA14

Derek Stahl /
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You can use orifice drills to make small holes in the slide that are only open at the throttle positions you are rich, as you open the throttle the holes will go into the carb body and no longer effect you're mixture. It's not so much the air the holes let in as it is the drop in differential pressure across the venturi that decreases the draw on the main jet.

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