Quote:
Originally Posted by John Milner
I have a 7040264 Quadrajet on my stock YS 69 GTO engine. It idles good and does fine cruising. However, there is a stumble just off idle when I take off. The calibration is stock on the carb. Does anyone have any suggestions as to what I might need to modify to make it stop stumbling and having a flat spot when I take off?
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John, I had this issue and my cure was to re-seat the check ball located under the accelerator pump…