Engine miss

[Denny Clayton]

If there is a way to test for a warped head I would definitely try it.

Compression test, dry then wet. I don't think that a warped head is the problem with #3 cylinder. More than likely worn or stuck rings since that cylinder is pumping oil - fouling the spark plug.

Just go ahead with the SeaFoam treatment, work the engine. It may take a while for the rings to free up - maybe never. In the mean time, you will probably continue to foul the spark plug. Next time you have to replace the #3 plug, go with a hotter plug and open the gap up a bit.

While you are adding Seafoam to the oil also add it to the gas. Then work it.

[Jim Becker]

I am also going to Napa . . . some 8mm wires. . . .

You need to use solid copper core wires. If you have resistor wires, they will contribute to your problem.

[Jason_Coffey]

Jim, my wires are solid copper core. I haven't changed anything since I found the fouled plug. It is still running like a top.