I put on a hv aluminum water pump on my engine installation. I bought the pump 6 months ago and now I am doing the finishing touches on the engine before firing it up for the first time. Well I noticed the pump only had 1 hole on the back and that goes to the intake, my other one had 2 holes, one to the intake and one to the heater hose. Is their another way to do the heater hose? I have a performer manifold with the 2 holes on the the upper part of the manifold. Thanks everyone.