[Mgs] Converting '77B to dual HIF's

[Scott Bonacker]

The water line that returns from the choke on the original ZS goes to the
engine block behind the distributor. I think this is usually where the water
drain valve is located, but it is presently a brass elbow milled from a
block. There doesn't seem to be anyplace on the head for a coolant
connection other than where the thermostat is so I don't seem to need a
blanking plate.

Would there be any reason not to replace this fitting with an actual drain
valve?


Scott Bonacker