1974 20' CC

[PressureDrop]

is there in echo in here... the search function will reveal allot of useful information, in a nut shell, check the transom, if its origional chances are its no good anymore, deck is easy, walk around everywhere check for soft spots, esp around where anything is screwed/bolted down. stick your head everywhere you can, touch and bang on stuff (not to hard now) if the gas tank is foamed in under the deck and is origional it will need diligent inspection... thats just scratching the surface, im sure others will chime in