Went racing this weekend tow large GN, got home and filled tank (was on empty) and it took 41.338 gallons to fill. the most I ever got was 40 gallons in befroe, anyone ever get that many gallons in there truck?
Single saddle tank is 38 gal. Harpoon is cutting the filler neck and vent line inside the tank as close to the top as possible to eliminate the "burping" problem and squeeze extra fuel in. I never run mine down that far so I am not sure how much it will hold with my mods.