No fire to plugs, have replaced coilpack, rotor bug, chip under rotor bug truck will run for a minute and then die, once it cools down it will start and then die again

At the beginning you say lots of fire but then no fire and you replaced rotor and cap no fire?
Check the wiring to the dist. and inside for anything loose that could make contact and then loose it. No I do not think its your key system.
Also fix the knock sensor, it has to do with the fuel system.
Hope this is helpful Mike

Check the timing

If you haven't already done so, replace the distributor cap and rotor. There is most likely corrosion inside the cap that is causing a crossfire condition.

This is a common problem on that engine.

Don't know why being hot would aggravate it, but start with the cap.

You may want to change your rotor bug in distrubtor,If this don't work you may have bent or wornout shaft goig down from distrubutor inside motor. But if your getting fire to the coil but not the distrubtor i think the rotor bug will fix it. Good luck to you.

How old are the spark plugs, cap and rotor?? If over 2 years i would replace them. Also you may want to test and replace the ignition module. Sounds like it breaks down due to heat when the engine is warm and needs to cool down before starting again.

Check Alternator for bad diodes and A/C output,
you shouldn't have

Check fuel pump--with a scope, to see if that
is getting ready to fail

Exhaust Converter- most likely clogged,thus
no power & all the other issues

Timing Chain --loose ?
Rock crank back and forth
Check timing with light, half way thru
firing order,should be same as on #1

Ever consider the Fuel Pump
may have failed?
Put a gauge on it and road test

Check for a plugged fuel filter. If that is OK, then it is probably a bad fuel pump. Once it cools down. then it starts to work again.

fuel pump, or dying ignition parts, ie cap, rotor, plugs, wires and coil.

have the electronic module checked and maybe replaced to correct this problem