Rich,
Welcome to the site. Sorry for the delay as I couldn't get into the site last week
. Anyway, the mechanical fuel pump may be your problem, or if the car has sat a while there may be debris in the bottom of the fuel tank which is clogging the "sock" type filter on the fuel pickup. I would check the pump first as it is easier to access. Front of engine, passenger side of timing chain cover about halfway down. It his held on by two bolts; one on top, one on bottom, if you have to replace it. I think there was a recent post where I described how to do it.
http://www.classicoldsmobile.com/vb/...ent-455-a.html
Pronounciation is first O is long, secon O is short, similar to the British pronounciation of tomato.
Concerning you headlight doors, you may have a vaccum leak or faulty vacuum canister or lines, it may be the size of a coffee can or a little smaller and has two vaccum lines to it; one input, on output. It stores vaccum from the manifold to enable smooth operation of accessories. Often air plenum doors for the ventilation system are operated by vaccum as well. Try tracing out the vaccum lines from the headlight doors back to the source, you may find the culprit.
Good luck restoring your Oldsmobile and enjoy it!