Originally Posted by Scrumgees
still waiting for parts but it has occured to me to wonder if the size of my bypass hose from the intake to the water pump is a critical factor. -8AN, -10AN, -12AN? the bigger the better?
1/2 or 5/8s ID is plenty. In AN terms that's number 8 or 10. Don't forget the NTP side of the fitting into the manifold and water pump. These are usually 1/2 NTP, but check sometimes there's exceptions to that.