I'm on the final steps of the coyote swap. Hope to start it up tomorrow. But first... I need refrigerant. The owner's manual for the Gen 3 motor says to use 1234yf Refrigerant, but the 2005 system used the old stuff. The compressor and half the lines are from the 2018, the condenser and collector are from the 2005. I've read that the 2018 compressor might overheat over time with a FPP universal harness, but I've mitigated that by using the original harness and computer from the 2018 donor vic (yes, I regret that now because I need an electrical engineering degree to get the lights and heater blower to work). So do I have to use the new refrigerant because of the compressor, or is it the condenser/collector that mandate the new refrigerant?