I have alpha 1 out drive now i kind now i need to replace boots & gaskets but you dont think the 350 mounts like the 305 i have in boat now ?

front motor mounts should be in the same location, or close enough. Rear mounts differ between the older engine/transom plate and the newer engine/transom plate. The exhaust y pipe stays with the transom plate. Keep everything together as a package

Thanks will take some pic i appreciate the advice