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