No Throttle After 15 Minutes

[treblig]

I am out of deals on my 302, please help!!

I have stock 5.0 with less then 2000 miles on the motor. I took off almost all the sensors that I could to keep the car to run correctly. I have the O2’s, ACT, BAP, no EGR, I am on a three pulley system, no power steering, AC, or air pump, no WOT or BAT (?). I have 3/8 fuel coming out of tank to a -6 fuel filter (Summit 10 micron) to a Holly fuel pump then to the 5/16’s stock 5.0 fuel line then to the injections. Inside the tank I have a 1969 Camaro tank with a 69 sending unit, pick up tube is 5/16. The tank has been coated with POR 15 tank coating.

Here’s my problem:
When I start out the car runs great, jump on the gas and the tires break loose, engine temp is 0 to 100 degrees. After driving the car for 20 to 30 minutes, engine temp is 180 and the oil temp is 190, outside temp is 34 degrees. When I go to give it gas the car just dies, you let up on the gas and the car runs but you have to give the gas very easily. After 30 minute you really have to play with the gas and baby the pedal to make it back to the barn. The first time this happen I dropped the tank and coated the inside thinking of rust and corrosion. That’s done, drove it again same thing. So I dropped the tank and found out that the pickup tube has a screen and there is a crease right where the tube ends so I thought that the tube was sucking up the screen so last night I cut the screen off. Put the car back together and went down to the DMV today (they were closed due to the weather) to get my license tabs. On the way back the same thing, car dies until you let up on the gas and baby it.

The fuel pump is an old Holly inline, when they first were doing the 5.0 conversions, 1993. Also the pump is pretty quite at first; 15 minutes later you can really hear the pump (at a stop light) next thing the car is dying.

Before I go out and spend 250 for a new pump, I wanted to see what you guys think. I want to think it’s the pump however I am thinking it might be electrical, stock coil and distributor, motor gets to temp and you heat expansion could cause gaps in solder joints I know if it’s electrical I could be chasing this for weeks and drain my savings account for my paint job. I am so close.