a fuel distribution shaft rotatably mounted in said bore of said {TAIL ~ housing} including axially spaced, mutually communicating fuel receiving and fuel discharge ports in a side of {HEAD ~ said shaft} that are simultaneously registrable with said fuel receiving and fuel distributing passages of said housing as said shaft rotates, and 
a fuel distribution shaft rotatably mounted in said bore of said { TAIL ~ housing } including axially spaced , mutually communicating fuel receiving and fuel discharge ports in a side of { HEAD ~ said shaft } that are simultaneously registrable with said fuel receiving and fuel distributing passages of said housing as said shaft rotates , and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH