Add new question to the seller

Hi, I am very interested in this boat. Question. The ad says gas capacity is 21-30!gallons. Which is it? Because that is the difference between 1-2 hours of running time. Also, I am in Tampa but I would require a test drive prior to purchase. Is that a possibility? Obviously I’d drive to where the boat is and if it’s passes my inspection, I’ll bring a cashiers check with me and take it home.