How long does this car sit between use? Something sounds wrong here. Mine sits 6 months at a time in winter and I never have to crank it 20 minutes to get it running. Holley carb(no choke), Carter mech pump and Ethanol premium fuel. I crank it 20-30 seconds at a time a few pumps of the pedal and it fires right off. I usually only drive it once a week in summer.....couple pumps and a quick crank and it's running. I've actually still had fuel in the bowls(evidenced by watching acc pump discharge)after sitting all winter. I'd be wondering where the fuel is going.