..sux on gas and power. I just got it for free and it wasn't running right. I replaced ALL of the spark plugs, wire, cap and rotor. It runs a whole lot better now. BUT, when I stomp the gas, it makes noise and revs up but it is not smooth power. It seems to feel like as if it's misfiring, or like as if it's not breathing. Does anyone have an idea? I'm thinking about doing a fuel filter, maybe a fuel pump. Or is it that knock sensor? I'm getting frustrated as hell! HELP!