Need help with jetting carb's

Tankman111

Recruit
Joined
Jul 4, 2012
Messages
2
I have a 1983, 300 HP black max mercury with WO-5 carburetors, I'm at 5000 feet elevation, needing to know what size jets I should have installed (main jet ? / Idle jet ? / vent jet ? )
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,931
Best to play with prop pitch as parts for that motor are like hens teeth.......scarce.
 
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