Dang.

Removed the aux air valve and found a huge glob of silicone on the sensor. Must have done that when I was running with carbs.

I cleaned that off and cleaned up and flushed out the aux air valve. I then applied a thin silicone seal to the head and re-installed the valve - correct side up this time.

While I was at it, I also removed and cleaned the lower trigger points, and re-oiled the dizzy. I also cleaned the lower trigger point-harness plug

I was rewarded with an almost immediate start... which died as soon as I tried to give it throttle. It would not fully, start and it got much worse when I gave the engine throttle. Now it won't start at all.

Pulling each plug, I found (again) that #1 and #4 were slick with gasoline and #2 and #3 were only slightly wet.

I confirmed that all four sparks are getting pulse and sparking and I pulled the cold start injector to check for fuel (it's squirting fuel).

I've re-set static timing and checked the points gap.

This is really confusing. The whole system worked flawlessly when it was in the 1800. I carefully pulled and stored the D-jet parts and ran the motor with carbs for 10-12 months, and then put all the d-jet parts back in last month.

I must have done something when it was in "carbs" mode. I really don't get why the car's not starting at all anymore...