Car was running great. Put ethanol gas in it and went for a drive. will not run correctly. acts like it is not getting enough gas. have to pump gas pedal to get running. Fuel filter and distributor have been changed. Filter had quit a bit of junk in it. At one point it would run at idle fine. It has sat for a year now and it backfires and will not idle at all. have to continually pump gas to get running.
could it be the fuel pump.