TC does do mild pressurizing on his Firebird with the nozzles on the leading edges of the wings, which are in fact, the fuel vents, rather than venting on the relatively low pressure bottom of the fuse as we most often see.

Photo shows a set of tank fittings my friend Paul Jacques machines on the left, which accepts 3/16" ID Tygon, similar to what TC uses vs standard BVM fittings on the right.

The precision machined gear pumps attached to relatively crappy motors that most turbine manufacturers use actually perform quite well without pressurization, as long as you don't restrict inflow.