Since the stock VTX mill makes enough juice to keep Tropicana in business, it was decided that stock, at least in this case, was trick enough. The only nonstandard part installed under the OEM cases was a Barnett clutch. Externally, the engine received a few minor tweaks. First, John carved up a sweet air filter assembly, and since what flows in must also flow out, a set of Vance & Hines Big Shots were installed. To ensure accurate fuel metering, a Power Commander III was plugged in.