I was originally thinking about doing a dual walbro setup, but I thought against it and want to go external instead. My initial idea was to get a sump but I was scared that cops will pull me over when they see that in california. Next is a Fuel cell, i can get a 15 gallon one and just have it out of view, but I rather not have 15 gallons of fuel sloshing around behind me. So are the pros and cons of end besides a sump looks bad ass.