Hello everyone. I may have touched on this subject before, but I cant remember. Anyways, here is my situation. My mercruiser MC-1 needs repainted. And not just overcoated, the whole nine yards. Which I can do, I have the materials. However, I also have another upper unit which is in really good shape. The lower unit would have to be done regardless, but it would save me some work if I could just swap out the uppers. But here is the thing...my existing upper is a 1.5 - 1, and the one thats in good shape is a 1.32-1. So my question is this...if I were to swap them , how much of a performance change would there be? Would it be noticeable, and if so , HOW noticeable? Oh...and I have a 23ft 1978 Century 5000 with a newly rebuilt 260.
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