We cannot find any fluid leaks. No drops, nothing on the car. Washed and drove for 85 miles. Still no leaks. Transmission fluid was again a quart low. Maybe the converter wasn't full. In any case, it shifts fine, and runs great.
New problem. After about 60 miles, the service engine light came on. I put the computer on it, and it shows EGR issue. I looked at the EGR, and the Fiero cable to the transmission had gotten jammed in the EGR, probably when the EGR was removed so we could drill out the bolts on the rear manifold flange. The cable still works, but it's toast. So, I've got to source that cable, whatever it's called. Darn.
I'll add the missing bolt to the coolant crossover tube tomorrow. I got all the fasteners in place on the top of the radiator. I blew out all the little wire ends and other debris.
I don't know if the EGR solenoid itself is bad. I've been told it is, but I don't believe so. I think that there was a gap caused by that cable being in there, and that caused a code to be set. I did clear the computer, and the code came up again.