Well,

I got about 8 miles out of town at highway speed and the van died.
Luckily I was at a stoplight in the next small town and was able to
pull over before it completely died on me. After I parked it, it didn't
want to start again - same as before. I'm sure tonight when I go back
it will start right back up.

So, I'm back to pulling the regulator again and looking for
obstructions and then I am going to have to pull the fuel rails to make
sure I don't have clogged injectors. Bummer, but I had to take care of
the fuel injector seals eventually anyways.

Disconnecting the AFM didn't do anything, so I've ruled that out as the
problem.

Conrad