I have an Edelbrock 1406 carburetor for my 1968 350. After about 10 minutes of driving, the idle does not hold when I am in drive and stopped at stoplight, ie I have to keep my foot on both gas and brake to prevent killing the engine. When the car is in park it seems to idle just fine. Not sure how old the carburetor is, but the engine was rebuilt several years ago and has not had a lot of recent driving.
Do these symptoms seem to indicate that the carb needs to be rebuilt? If so, would I be better off just getting a new carb? Or is it possible the carb just needs to be adjusted? Does anyone have any directions/rule of thumb on how to adjust the 2 screws up front on the carb? Any help would be greatly appreciated. Thanks.
