The cam positions of {HEAD ~ the camshaft} include {TAIL ~ secondary lobes} in conjunction with normal primary lobes 
The cam positions of { HEAD ~ the camshaft } include { TAIL ~ secondary lobes } in conjunction with normal primary lobes
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH