NGC or GPEC2?

DionR said
Maybe something to add to this question. AC controls?

Best guess is that the GPEC2 unit controls the AC clutch based on input on the CanBUS network. Does the NGC unit do it the same way?

Not the end of the world, just something I am trying to wrap my mind around. Spent some time looking at AC compressors and such and (I think) the Holley mounts coupled with the short compressor like from a Ram might actually bolt up. Which brings up the question of how to control it.

These type questions for example AC clutch control can be answered by either wiring diagrams and or also factory or also aftermarket service information as in ALLDATA or Mitchell On Demand or other user platforms but that way you can investigate your concerns for the exact year make model you are wondering about.