James, Your exhaust manifold is leaking. The description you give is a classic case! It's nice that you've got so many new parts in your fuel and ignition system. You'll be glad you did that in the long run, but there was no chance any of that would fix this problem. You'll want new gaskets and new bolts. It's a tough job. I had mine done professionally. See this article by Martin Gutkowski on the DMC News Tech Section for detials: http://www.dmcnews.com/Techsection/exhaustgasket.html - Mike Substelny VIN 01280 9 years