I have the A4 in mine. Raw water cooled . A friend put the fresh water cooling kit on his engine ( Columbia 27) and when he tries to push it, it overheats and produces steam. We ran together to Block a few years ago. I had to hand steer the whole way.
My cruising RPM was more then he could keep up with , so I just kept making large circles around him the whole trip out and back
My cruising RPM was more then he could keep up with , so I just kept making large circles around him the whole trip out and back