I have had my boat for a couple years. bbc panther logs. put a new carter comp. carb and hei on it. took it out sunday andwhen you get it off idle there is white smoke everywhere at idle is fine. both sides of exhaust. Oil isnt over filled, oil is clean. I fired it up dry really quick and no smoke. Only when water is ran through it. Maybe to much water running through? Any ideas would be great. Or opinion.