{TAIL ~ The system} 2 wherein {HEAD ~ said intake manifold temperature} is varied in discrete steps corresponding to idle, part open throttle, and wide open throttle operation 
{ TAIL ~ The system } 2 wherein { HEAD ~ said intake manifold temperature } is varied in discrete steps corresponding to idle , part open throttle , and wide open throttle operation
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH