69 Vette A/c
#2
Racer
The large hose is the suction (low pressure) side of the system. The port on the back of the compressor that is closest to the engine is the low side and the other one is the high side. The discharge (high pressure) side of the system is also the one that has the muffler (big round tank) inline with the hose.
Regards,
Jay
Regards,
Jay