I have a 94' sc 5spd that I've owned for about a month before I broke it. The valve covers are leaking, but on top of that I have no power and it's missing. Has a very rough idle most of the time. When I go down the road it feels like the motor is wobbling almost, when I step on the gas. It has no power and bogs down on take off. I plan on changing the plugs and wires when I get in there to do the valve covers. Any ideas what could make it run like this?