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Re: vibrating @ stop lights
I am running a new Edelbrock 4BBL. Mine did something similar at idle. In neutral or running through the gears, all was fine. We had one of the needles on the carburetor that seemed to have something in it. We removed the needle and sprayed some cleaner in the hole, then a blast of air... took about 3 or 4 tries but it eventually settled down.
Ran each needle down until the motor started to run rough, then backed off until it smoothed out. Been running fine ever since. I will be taking it to my buddy who runs a carburetor tune up shop and races Pro Stock... have him hook me up to his "tune-o-matic" diagnostic machine and dial in the carb and timing and all should be excellente'.
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