Ok , I did a few things today to try and fix the problem.I had it suggested that it might be the module on the distributor , as even a rebuilt one , they don't always check those , so I swapped that out.It seems to run a little better , and is not stalling as often , but it still cuts out.I then put one of those perma-cool fuel filters on with the water peticock to drain water out of the fuel.This adapter has 4 ports on it , so I am using 2 for fuel in and out , then under the hood I put a 1 1/2" fuel pressure guage.The other one is blocked off for now , I need another 1/2 NPT to -6 fitting , then I am installing a pressure guage in the cab.I got one of those autometer kits with a 2 5/8 guage , and the pressure kit so you can install it safely in the cab.Anyway , I ran the truck again after putting in the under the hood guage , and I think that might be my problem.I am getting between 9 and 10 PSI at about 1200 RPM , and when it drops to 700-800 RPM it drops below 9 PSI.Once it hits 8 1/2 PSI the truck cuts out.I think I read in one of the manuals that it cuts out at 9 PSI as a safety feature.

Now , I have the Holley black external fuel pump , which is good to 14 PSI , which should run the truck no problem , and which it did for a while , but now the PSI has gone to crap.Heres is the specs on the Holley.
These Black electric fuel pumps from Holley feature an improved design for street and strip applications, a new lower housing casting for enhanced fuel flow, and a tumble-polished billet look with the distinctive black logo. These pumps have a 140 gph flow rate, only draw 4 amps, and have a maximum pressure of 14 psi with an externally accessible pressure relief valve. They weigh only 3 lbs., and include a mounting bracket. These pumps are compatible with alcohol or methanol fuels.

I'm wondering what the actual pressure should be on the 2.8 or 3.4 engines , and also if this sounds like a pressure regulator problem.Also , if it is a regulator problem , with a pump with a max of 14 PSI , do I really need the regulator?It seems with the 9 PSI it is barely putting enough pressure to run the truck , and once it idles and goes alittle lower , it cuts out , then I have to let it sit for aminute , and maybe it takes that time to build the pressure up again?

Any ideas on this would be appreciated so I can get it street ready again without worrying about staling in intersections.