Smokey Acheiva

Hi there!

My '92 Acheiva Quad smokes at highway speeds (as well as on quick accleration). The smoke is black. It also "lugs" or "jumps."

I'm suspecting an ignition and/or low spark problem.

I've replaced the
Fuel Filter
Spark Plugs
"Distributor" Component

Any ideas? Bad wires? Computer? Alignment of the planets?

Thanks