After New Fuel Pump ???

My van wouldn't start last week, so after looking in the manual, and reading several post's here I determined it was the fuel pump. I bought one at a parts store and put it on, the van started right away but the engine pegged out, had to shut it off with the key. It rev's up like crazy when I start it ??? Any ideas.

Did you check the regulator?

Dude I am having the same problem...
My 87 does it too!
I am about to burn it to the ground!
Someone please help us!
Background: 87 Safari, 4.3 V6, Auto, 2wd, 165k mi.

I have replaced nearly everything under the sun..
Here's list of new items right off the top of my head:

Fuel pump, relay, fuel filter, injectors, regulator..
Dist. cap, rotor, plugs, wires, coil, ign. pickup, finally the distributor.

PCM, TPS, EGR, IAC, O2, EGR sel., All vaccum lines, PCV, Air filter, cleaned the TBI body...

I am looking into a bad engine ground, possible bad PROM and CALPAK now, but I am grasping for straws...

Here's an exaple of what it does...
Short trips with long (couple hours) lay overs.. Van is fine.
Long trips with short lay overs... your stuck.

Just a while ago...
I went out, cranked the van first try, drove it around the block several times while cold. Came back, parked it in the drive and let idle for about 30 min., when I came out to check it, it was not running and would no longer start..

When this problem is presebt.. there is no fuel coming out of the injectors..

I am tired of chasing this problem and being towed home..
If anyone has some insight... please help.