Well I started the motor up tonight and began the break in. I had no water coming out the exhaust so I shut it right down. Now my question is I went from the stock 502MAG exhaust to Merc Hiperformance exhaust from an HP420. So I had to block off 2 of the ports on my t-stat housing. I think that I might have the hoses that go to the bottom of the exhaust on the wrong ports of the t-stat housing. I ran the hoses from the exhaust to the lower back 2 ports of the housing. I blocked off the 2 upper front ports of the housing. The ports that I blocked off originally went to the fitting on the exhaust riser. Should I switch them around? I will post a pic in a minute. Thanks!