comet 75; all c-4 transmissions had a modulator valve. Check to see if the modulator is a single port or dual port, as there are differences. The later valves are dual port.
National Parts Depot has a water outlet for port 1 that has the 90 degree elbow, just like the factory, yet has the larger thread fitting for aftermarket intakes. It works very well and looks better than adapters. It's part number 18559-10 and it retails for $6.95.
