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Old 08-19-2019, 02:32 PM   #17
HeavyHauler
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Join Date: Nov 2011
Location: USA
Posts: 381
Re: Edelbrock 600cfm carb idle will not stay steady

Quote:
Originally Posted by HO455 View Post
Throttle shaft bushings wear in a front to back direction on the drivers side of the carburetor. This wear is accelerated by having improperly installed springs or too heavy of return spring. (Most aftermarket springs fall into this category).
You can feel the shaft wear if you try to move the throttle shaft forward and aft. Anything more than 1/16" of play could be problematic.
Awesome and thanks for the tip. I will check the play anyways just to see how much it has. My truck is running really well now.
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