The trip o/b apps I did ran very high x's. Sense the need for the pickups . We ran 2 pickups to 2 trainers. Both outs from the strainers went to a manifold which had been plumber for triple outlets. From there each outlet was plumber to each engine below the adapterplate . We ran 6" cooke brackets and the boat had no center sponson. Typically the center engine will bang the limited about 500% more. We used 2.5 280's on this app. We did another using 300x s and shared to center cases. Ended up adding a small center sponson. Same water system. A lot, A LOT of time in these skates, but they were fast.