U should get some good mileage out of that tank....I had a 30gal in my old 20' ox with a 150 yam on it...all day on the water an no worries getting home..corse I'm not known to be a speed demon either so milage may differ with who's behind the wheel...A friend has a 1973 20' cc sc. with a 150...with him it's dead stop or all out...reguardless of sea conditions....one
sob to ride with..but we/re still both here.