Gas Consumption

[GlennD]

I recently purchased a 99 200 Hp Saltwater Series. The engine is on a 1984 Wellcraft V-20 Fisherman center console. My gas guage hasn't worked in years. Does anyone know what the aproximate GPH is at various RPM's for this size engine.
Thanks
Glenn

[boats.net]

It will probably be 20 plus gph at full throttle.