You are a badass dude.
You are the very guy who keeps this **** going brother.
I think its awesome.
You will never make it run with dribbly injecters.
If you have 15 psi at the forward end of the filter you have a healthy fuel pump.
I assume that you found the drips by looking at it with a timing light?
Like most things in life, if its dripping when it shouldnt its probably funky.
The next thing is bad factory battery cables.
They are known to look great on the outside and be rotted crud green on the inside
Cut the ends open and take a look.
I bet they look like fuzzy green poo.
A cold start uncontrolled high rev that settles down very slowly is quite often a bad TBI base gasket.
And, though ive never had a TBI do this to me.
A bad knock sensor on a Nissan Or a Jag or a BMW or a bunch of other cars will cause the exact same throttle problems you are describing.
And even on an OBD11 car a bad knock sensor will not trigger the check engine light.
The knock sensor on your truck is screwed into the side of the block just a little above and slighltly behind the starter.
It threads into a water jacket so it will pee on you when you pull it.
If it doesnt, its full if crud.
So, just like everything else us cars are going to do.
Poke it with a stick until it leaks.
Buy the replacement pigtail harness for it too.
It might not solve your problem but you need it anyway.
You can clean and reuse your egr valve if you are very carefull about how you do it.
If it will hold 12 pounds of vacuum for 2 minutes its a good candidate for cleaning.
If it doesnt budge at all.
put it in a bucket of kerosene for a couple of days and see if ypu can get the diapragm to move.
If you can pull the diaphram back while it holds vacuum
All you need to do is scrape the carbon ring off of the inside of the EGR valve.
I am running the original 1994 EGR.
I pull it twice every year.
On the same day service the G80 diff I service the EGR.
Do the dirty nasty **** while you are already dirted up.
Do the clean interior **** when you are clean.
They will both get done,
Its all about not mind ******* yourself when you do it.
You really do need to take a break for yourself.
This is just works for me.
After every ball busting major project?
Get 6 of whatever and and clean the seats, or the dash or just polish a few spots to see how it will turn out.
Every time you feel beat down remember that you are in charge of this whole ******** operation so go out and wash the truck or clean the windows or whatever.
The more time you spend cleaning it, the more you want to fix it,
And that is how you get the motivation to finish the job.
You got this brother.
You are a persistant no giving up dedicated man.
Thats awesome