Hemiman,are you telling us that we will be able to use just the engine PCM stand alone,without the need of the BCM ,factory ignition (key & switch)? In my application, I would like to eliminate the use of the automatic transmission, (going to a Colorado 5speed) and the use of the EV fan system, I plan to use a rad mounted electric fan because of space limitations.Between the Speartech harness strip & the Westers Garage flash is this basicly all we need for this engine transplant, besides all the hours & mechanical fabricating?

Thanks, Lumpy