I have been working on starting a motor that has sat for several years and I have gotten it running for a few seconds. I am unable to keep it running because when I feed fuel to the Carter AFB carb is overflows the bowl and starts coming out of the top. I am feeding it from a 1 gallon tank of fresh fuel with a filter in place. I am using a hand pump to start the fuel flow and then attaching it to the carb with the gas can higher than the carb. Im assuming the carb is gummed up from sitting. First, am I doing something wrong with my fueling process? Im not planning on keeping the carb. Is it worth rebuilding it to make sure everything is good on the motor prior to buying a fuel injection kit? I would hate to spend all of that money and the motor turn out to have a major problem but Im not sure what all to check. Compression? Oil pressure? Cannot really check oil pressure without the motor operating correct? Thanks in advance.