I just bought a 97 Chevy k1500 z71. 350 5.7 liter everything running great on this truck, but for my own purpose I changed out rotor, distributor cap, plugs and wires, air filter, fuel filter, and changed everything out and all of a sudden, now it runs worse??? What the hell stalling cause the idle is too low, and hesitates when starting up, have to keep my foot on pedal to keep it running??? Help anyone, spark plugs came to me .60 gaped... Help anyone????