Conversely, the PowerPort heads’ exhaust ports are raised 0.100-inch above the factory position, and their 115cc runners are 1.380x1.670-inch. We already anticipate experiencing a challenge acquiring headers for this Clevor application. Right now, it appears using custom-fabricated tubes is the only option. However, before going that route, we’re going to try Hedman Hedders’ 351C tubes (PN 85619). We’re also told Trick Flow is working with another major header manufacturer, who may mass-produce long-tubes for Fox-bound Clevor engines.