So over a year ago, I pulled the IP and the Oil Filter Housing to replace a bunch of leaky oil seals. I put it back together and timed it to 26 - BTDC. The car ran okay after that, though there was a shake at idle I never could get rid of, not even after new motor mounts and shocks, new injectors and a new rack damper bolt.

I figured it was slightly miss timed. So I set the crank to 24 this time, pulled the pump again yesterday and set the tooth marks to speck and then replaced. Drip timed it to 1/sec, at WOT. Replaced fuel filters (both) and bled the lines accordingly. Started car and it ran rough for a second, which is expected, spewing smelly, (unburnt fuel) white smoke out the back. It smoothed out slightly, but now there is a very pronounced miss (in fact often times multiple misses) at idle. Sometimes, it won't even stay running, when cold, and shakes ferociously.

When hot, it doesn't smoke but exhaust still smells awful. Acceleration is the same as before and will do 70 easily. On deceleration in first or second gear, however, (under 15 mph) you can feel the car shaking while in D, and you can hear the engine kind of missing/loping. At idle, the miss/lope is extremely noticeable. Adjustment of rack damper bolt yields no improvement.

This definitely is a fueling issue. My question is, is the IP shot? What about the possibility that delivery valves are sticking or damaged?

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1983 300CDT -- 177K