electronic means suitable for activating all injectors of all the cylinders at the same time for admitting {HEAD ~ fuel} to {TAIL ~ each intake pipe} of each cylinder of the engine 
to
electronic means suitable for activating all injectors of all the cylinders at the same time for admitting { HEAD ~ fuel } to { TAIL ~ each intake pipe } of each cylinder of the engine
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH