was just wondering if i convert my exhaust to a through hull exhaust if i would gain or lose power, and to do this do i need to purchase different manifolds or can i adapt to that stalk merc small block ones that i have,
the prop clanks when in gear i can spin it freely , i just put a new alpha one lower unit on ,i did it while in the forword gear both boat and unit, now when the boat is off i place in forword or reverse and i can spin the prop and it clanks loud , but in nuetural it is fine it spins free...
