Add new question to the seller

I bought a 1988 model and put two new Marine Max 454 but it is not getting the upper end rpms. I have an 18 x 17 props but was told the boat should have come with a 17 x 16 with #2 or #3 cups. I have been trying for four months to get information from numerous sources without success. Can you tell me what size props are on your boat.

Thanks,