Ok when this is cold you can crank it untill the batteries die it will not start, give it a little gas down the intake and it starts right up. Every time after that it will start on the first turn of the key all day long, let it sit over night and you have to put gas down it's throat. It has good fuel good spark good grounds, two good batteries, new distributor, new wires, new plugs, new temp sensors, new starter and a completely different engine with all different sensors and fuel injection because the other engine had a little more blow by on two cyl. Thanks. 1998 K1500 Suburban.