I was just curious as to what other boats has for fuel capacities versus running times. is my Hallett, with twin 10 gallon tanks (20 total) with a 455 Olds and a single 850 Holley w/ vacuum secondaries will run about 2 hours, give or take, on those tanks. Thats not a whole lot especially when finding a fuel pump on the lakes that I usually go to is hard to find. not loke California out here. I now carry 10 - 12 extra gallons in cans just to be sure and have to go to town to fill them up again.