Ford Boss 5.4 upper Plenum and jig to make front mounted TB.
Ford Boss 5.4 upper Plenum and jig to make into front mounted twin 60mm Throttle Body. Good used upper Plenum. Jig made from 50×8 fb and angle to locate twin 60mm GT 500 throttle body. See photos. drilled and tapped for 3/8th bsp fitting on flat side for 5/8th crankcase breather.