I bought a programmable DRAC/buffer from Warr Performance of Fresno, CA. I mounted it piggyback on the ECM, both are now under the passenger side of the front seat.
I did not connect the P/N signal,...

What years were the DRACs external to the speedometer? I will need 2,000 pulses per mile for the ECM & firmware version. Can anyone recommend one?

I have the 1227747 ECM from 1988 GMC C1500 and...

A closer look at the tanks revealed vent hoses from top of tanks to the top of the filler necks on both tanks. So I bought a 6-port tank selector solenoid valve that switches the return as well as...

It looks like getting a 6-port tank selector valve and two of the Moroso filler neck adapters with returns is in order.

I still have to figure out how to get the park & neutral switch set up....

The truck has TWO tanks with a valve to switch between the two.

We are installing a E2182 in-line fuel pump. I was going to put an inlet (Purolator F21111) filter BEFORE the pump, then the pump,...

Donor truck is a 1988 GMC C1500 made by General Motors of Canada, LTD manufactured 01/87

Receiving truck is a 1973 C20 Crew Cab, long bed.

1. What do I do with the TBI fuel regulator return...

I am starting a project of swapping the engine and transmission from one pickup

Dave "O-B-1" Mitchell
Benton City, WA