If ya have an Olds its gonna be expensive to fix, drive, and get parts....thats why there is such a greater following for Ford and Chevy. A 425 should not be hard to find at all. Do ya think a 350 chevy will power that boat much better than the Olds engine thats there now?...I dont unless its a HP crate engine and for that money ya can rebuild a 425. Oh by the way the turbo 400 trans that is there now doesnt have the same bolt pattern for the Chevy engine.....ROP is
www.realoldspower.com there's lots of activity there, some good and some bad.