still having issues with 97 xp starting. engine sat up all winter and half the summer. Now won't turn over with plugs in. New starter, new solenoid, cables ohmed good, getting 11.8 volts at starter when tring to start. New battery. How many cranking amps should the battery have. I can get it to turn over with the plugs in while the battery charger is on boost ( napa heavy duty charger) ....battery has 16 amphr on it .....it it enough....about to pull engine....