VH Fuel Pak mileage question
Got a 2010 Road King, SE air filter, true duals, wild pig mufflers, and Fuel Pak. VH gave me FP3219 as a set up map. Went on ride with my Babe on her 07 EG, Python slip ons, SE air filter, stock exhaust y-pipe. 150 miles she ends with a little less than 3/4 full and I have 1/4 tank left. We both have fuel pak. What the h*** is that about? I do think her bike may have had the Stage 1 download when we bought it, would it make that much difference? I don't have the Stage 1 download. Someone please give me a clue.