[RICK LAKE]

Burgs The manifold you are talking about is a replacment for an engine in a street car with all the emissions holes in it. Some vacuum lines only work when the motor is at a operation temp like above 160F. This is why the extra holes for the valves that work off temp only. Some EGR valves don't work until a temp is reached. Coolant sensor and probe for the guage is right behind the thermostat. The temp gauge gets a workout, going from 180 to 160 in aheartbeat. I don't know what emissions you need for your car if any. I don't have my assembly manual for my car in front of me but I think 1 heater hose goes from the water pump and the other from the intake where you are at. ! is straight and the other in the manifold is a 90 degree one with a water control valve on it. It trickels the flow in the summer time and keeps the heat in the cockpit to a mininium. I have the heater blower in my car but is not hooked to the coolant. Rick Lake