Thanks guys for the quick responses. It's too dark to do anything else tonight but I will try all suggestions. With any luck it'll be something simple. I've only put about 4k miles on this car. No chain rattle on startup, no missing, nothing other than smoke on startup. The PO took pretty good care of the car but says the chain wasn't changed. He does claim oil changes every 3500 miles and the tranny was serviced just before I bought it due to a leaking pan gasket. I was able to look around the rockers and springs and everything seems to be in place. I'll dig deeper tomorrow and post what I find. Thanks guys, and please keep the suggestions coming. Anything is worth a shot. And yes, I do all my own wrenching, kind of a hobby.

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