I have an 01 250 XC. Currently it's getting a new head/piston ported for more low end, squish set, stock compression ratio, 275 cc motor. I'm an older beat up guy and ride in some very technical terrain and I prefer torque over HP. I almost always ride a "gear high", sometimes even 2 gears up and due to terrain my speed average is usually 10-15mph where I ride. Very technical rides most of the time. I don't race, but try to keep up with racers where I ride so many rides are somewhat aggressive.
Question is, would I spend my money better to send the carb off to RB designs for the mods they do, or try the Smart Carb? Has anyone compared the two? Any reliability concerns for either carb itself or how either one affects the motor? Pros and Cons? I have been reading that the RB Designs carb mods improve fuel mileage, as does the Smart Carb. Which one helps mileage more? Mileage is not my primary concern but my bike with a stock tank will only go about 37-39 miles currently. I've been considering a larger tank, but if either of these carbs will get me up to the 45+ mpg mark I can forgo that expense.
Any other advice on a different carb or carb mods?
Thanks, Jeff.