I don't know if I'm the only one but I'm a bit confused concerning the possible lower units for four strokes V8. I've got a 200hp Pro XS V8 (2B591233) with a lower unit (gray) with 7 holes. I think it's a Verado type lower. I'm not exactly sure about the ratio but I think 1.85. If somebody would make a list of possible lower units for 200 h V8 and 250hp V8 (Pro XS) with size and ratios, maybe it would help me, an others.