starts up when primed with throttle, runs sluggish, and stalls at acceleration and seems to rev high but go slow. tried adjusting distributor and cleaning carb. checked to make sure gas is being sent to carb from pump. not sure what vaccume lines to check if thats the problem, or what sensors to check, could be egr or 02 sensor? just cant afford to replace carb, but could rebuild if needed. just seems very bogged. and hoping its not a fuel issue that can cause a serious fire hazard