That's alot of gas!
I have 2 12s in my boat and I usually burn about 16-18 gallons a day, but I spend most of the day turning beer cans upside down http://www.goldenplasma.f2s.com/foru...es/happy14.gif
When I run I usually chug around at about 3000 rpm .. I probably put 2-3 hours a day on my boat