Hi all,

I'm new to the forum and I've searched the archives but haven't turned up any answers. I purchased a 1987 2.4l Merc, 200hp Black Max. It's rigged to a Cougar Omega ModVP hull and runs a nosecone gearcase with a 28 chopper. I am in the process of rebuilding the powerhead. I have noticed that the idle, vent and main jet sizes are different from the factory specifications. I would like to know what is recommended for proper jetting. My elevation is around 830 ft. I don't want to run on the ragged (lean) edge of performance. I just want a safe jetting that still will make good power and not consume massive amounts of pump gas. The compression on the motor is stock as is the fuel delivery, internals and ignition system.

Any help would be appreciated.