Lots of experience with the 38. Stay away from Yan. 6ly 2a motors. esp 2002 -2007 prior to 4 valve units. Also adding to problem Very poor exhaust geometry(no room for a good system)-purposeful prop overloading for speed. If you can not absolutely verify that motor has not been over loaded in past beware. Definitely open turbo and get real expert eyes on it. Leaks from deck fittings common. If hydronic heat SX check exhaust SX some had bomb type none industry standard installs too low near waterline mixing SS and hot salt water(look for rusted fittings) Aside from that a interesting boat with fairly good riding characteristics. With the newer 24 valve motors worth a look, but remember you will always have potential and real exhaust issues which can cause early motor death(no rebuild motor).