{HEAD ~ The heat} from the exhaust passes through {TAIL ~ the conduit} 17 and into the intake manifold 21 and through pipes 24 within the tank 20 and from there through the outlet manifold to the tail pipe 18 
passes through
{ HEAD ~ The heat } from the exhaust passes through { TAIL ~ the conduit } 17 and into the intake manifold 21 and through pipes 24 within the tank 20 and from there through the outlet manifold to the tail pipe 18
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH