Just kidding about the neutral drops. I currently have the sole-vac electrical lead un-plugged. If I were to plug it back in, and then turn the a/c on, and I didn't want to fight (with the brakes) the high idle the sole-vac creates when stopped, I would put it in neutral, and then have to drop into gear, squaking the tires when taking back off.
Amazingly, other than that one issue, the car runs amazingly well. Most of me wants to rip all that crap out, and go with a 2150 (which I really like and am familiar with from working on my '72 Ford Highboy), but another part of me likes that the factory system is running well. I ran into Portland in it yesterday and got 27mpg.
I feel like I might even do a little better once I retune it. It was bought in Denver originally best I can tell, and lived in Cheyenne, WY, so has the high altitude factory setup. I live at 2,000ft. in Washington state, and will mostly run it from 2000 down to sea level. So, I found the little jumper at the passenger's feet, and will retune this weekend when I replace my incredibly leaky valve cover with a new aluminum one.
Maybe I'll try to adjust the screw on the Sole-Vac. Now that I think of it, my a/c is not charged right now . . . I wonder if that has anything to do with it.