nolan22 asked this question on 5/13/2000:

I have 350 chevy engine 160 thermostat and the boat runs at 175. one bank runs hotter than the other side> Can you tell me why. Thank you

btdockside gave this response on 5/16/2000:

it depends on what year engine, some engines have a ball and spring that controlls the flow out of the t-stat. check corrosion out of the t-stat housing then go to the riser and manifolds you will probablly find the problem there... thanks brett

btdockside gave this follow-up answer on 5/16/2000:

also check the exhaust flappers to make sure that they are not stuck closed