Hoggy,
I heated my Clifford by using the 3/8 pipe fitting below the thermostat. I took 5/8 hose from that nipple fitting as the origin of the water and went into the front of the intake then out of the back of the intake along the firewall and into the water heater core which puts the flow in series prior to the thermostat. It cured a lot of my problems with the fuel turning back into a liquid in that huge Clifford plenum after coming from the 390 cfm Holley 4. I have pictures if you want them.
