Well when i get on it about 3/4 the way or all the way it seems like it's missing or like the feeling my tires are slipping in a way. it's felt like this before and then at it's worst point it wouldn't idle right and didn't drive right and all it was were plugs and wires. so what else could be causing this. i sort of have a feeling it's the plugs or wires again but what would be making them go bad so fast?