Quote Originally Posted by ahmitchell1 View Post
Carbartors will keep you from getting vapor locked. This is the hottest summer we've had in its doing work to my parents chapp. I'm wrapping there fuel rails in exhaust wrap it should help
Try switching to a pusher type fuel pump, this helps a lot in vapor lock situations.
Older Chevy's had a lot of issues with vapor lock when you put headers on them so the trick was to use a pusher fuel pump and mount it on the frame rails right next to the tank. Might be a little harder in a boat since the tanks under the floor boards but probably low in the engine compartment where the fuel line enters will suffice.