Review on Vance & Hines Fuelpak - 61003A Original, Optimized for All 49 States by Chris Reddick

Added fuel pack to upgrade cam (S&S 510G) and new pads (V&H Ovals) for my 2003 Harley Road King. Some sort of fuel control is required and that seemed like a good choice. V&H Technical Support has provided input numbers to dial depending on the configuration. The only downside is you can't bench setup and tune the computer - only use what V&H offers. However, the bike handles very well and the effect of the fuel control is really clear - both under acceleration and deceleration.