I know someone with a similar setup and he uses a 21 pitch and still he's at 4200 and his calls for 3800 also his boat does great at top end maybe 55mph or so. Find a local marine shop and see if they will let you try out different props to find the right one alot of them will.
There are plenty of ways to test the stringers and transom look up some different ways and go with Wich one you feel comfortable with. Turn that engine over and see if she fires up and go from there. Old boat can be money pits but if you do it right atleast byou know what you got and it's...
When adjustment of the float when I hold the carb upside down the float is parallel with carbs. I've tried even adjusting it up a little thinking that may help. I am at a total lost on what else I can do to fix my issue
Ok just to update I found a local marine shop that had the float needle. I installed the new needle and it is still doing the same thing. What else could cause this. Does anyone have any ideas