Got a gustion for you all. Just bought a 18ft Robalo with a 1996 112 spl. Motor has 120 psi on all 4 cylinders. She has a 13.25x17x3 prop. I run 87 octane with fuel stabalizer. I did the big decarb when I bought her, and put 4new QL77JC4 plugs in. Motor runs like a champ the only thing is...
