no water to the heater core and no thermostat and not street driven. my electric water pump turn way slow but keep things under control at the track.........may not work on the street......
Set the water pump impeller tight to the timing cover by having a 1/4" plate of alu welded in and then machined back so the impeller just slightly scraped the timing housing with out a gasket. Threw a gasket on it and never looked back. I moves a lot of water.......but not so good if you have to run a t stat.