In a second embodiment, the fuel injector is positioned between {HEAD ~ the air delivery passage} and the side of {TAIL ~ the engine} 
In a second embodiment , the fuel injector is positioned between { HEAD ~ the air delivery passage } and the side of { TAIL ~ the engine }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL