This is on a edelbrock carburated 302. It has been running fine and very smooth until last week, when it started hesitating. I havent touched it and all of a sudden the idle is either very high or it just dies. When driving it stumbles at low RPM's, there is no smooth acceleration until about 3500RPM, thats when it pulls very good. I checked the timing, which is good. Could it be dirt in the carb or a vaccum leak what else? Whats the best way to find a vaccum leak?
thanks
thanks