We have fitted a hydrofoil to our mercruiser 4.3L with alpha one drive. The boat is planing much faster but the boat leans to one side when planing. We have checked the mounting of the hydrofoil and it is central and square. If we raise the drive up slightly the boat levels out. I know many people dont like the hydrofoils but it was the most cost effective method of improving the planing we coiuld afford. Any ideas why the boat is leaning and what can we do to rectify it without trimming up???