Allow me to start over. I have been a member of the marineengine.com forum for many years. I owned a 21ft Fiberform boat powered with a 318 Chrysler engine. I live in the Rocky Mountains and enjoy spending my time on a boat on reservoirs like Blue Mesa, Flaming Gorge, Ruedi and of course Lake Powell. A year ago I found the boat I was looking for on Craigslist. A 1982 Sea Ray 245 Sundancer with twin 3.8 liter OMC Sterndrive power plants. It is a one owner boat with well maintain completely from the factory stock motors and stringer out drives. How lucky am I... The perfect boat with a triple axle trailer that can handle the 4 and 5 hour drives to the reservoirs I enjoy spending time on. The boat sat for a couple of years unused and from the cosmetic shape of the boat in questionable storage facility. I have worked through all of the typical problems when a boat has not been used consistently-- electrical problems,tilt motor, select trim hydraulic leaks etc. I finally was able to get the boat and all of its systems up and running consistently, until a couple of weeks ago. The port motor will not go over 3300 rpms. I'm not sure what has changed. The biggest thing I have seen is that when the boat gets up on plane the Rochester 4barrel carb secondary is still spraying fuel even when it's is planed out and dialed in. The starboard motor when up on plane is only running on the primaries. I have done some research on the forum and ended up doing a distributor points,condenser,cap and rotor tune. A Rochester Quadrajet rebuild and a fuel pump change. I still have the same problem. The motor is timed, dwell metered and tuned by the numbers. Runs well at idle, distributor advances exactly when it should under power, but the motor will not go over 3300 rpm and the secondary is spraying fuel even when planed out. I'm starting to think the motor and carb are fine and I have a stringer out drive problem. Is there something that the Sterndrive can be doing to make the carb think it need s the extra fuel in the secondary when at cruising speed? Any thoughts would be helpful I am out of my troubleshooting bag o tricks