[Bushwacker]

The 21 that was the basis for the race boat is a much different boat than the 20, so I don't think you can conclude that 3 engines would work on the 20, which was made from the 19 bowrider molds. The 23 was based on the 21 mold, with a couple of feet added, reduced freeboard and different deadrise on the outer panel. Triples might be interesting on the 23 however! Skip and Carla are planning widely space twins on their 21, but it'll have room to mount a narrow 3rd engine in the center! That would be a wild setup with 3 150's on it!