yes there is a fast fill gas cap, it is a racing style cap but like previously stated you have to have the special gas can in order to fill your tank. look in a Rocky Mountain catalog and you will see the special gas can and stand that is used. I would only get that if you were going to race because its not cheap.
go get the latest issue of Sand Sport, its a magazine about sand rails, near the back they show a type of funnel that will fit a Jaz fuel can it will supposedly dump 5 gallons in a matter of seconds using your stock tank. I just found this the other night, tomorrow I will post the info for you of the company
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