Thanks guys, found it!

I retrieved my dusty amp meter and went through the EFI system like you suggested.

I assumed it was in the EFI system because when I had first got the truck I was trying to make the truck run as it was running intermittently. At that time with the air flow meter plugged in the drain was 340mA. Unplugging the air flow meter the drain dropped to 300mA. This time I basically unplugged everything in the engine compartment trying to chase down a 300mA drain. From injectors to the to the wiper motor. After unplugging the fuel pump motor I went back around the front and found one more plug just below the air box. A 4 prong plug with white wires. After disconnecting this - no drain. Those wires went led to the fuse/relay behind the drivers side kick panel. Evidently the area was damp I think because the body seam above is rusty. It turned out to be the round relay below the 4 way flasher relay. I replaced the relay with another used one.

Now my battery drain is about 10.5mA. This should be OK right?
Thanks again <img src="/forums/images/graemlins/cheers.gif" alt="" />