The 225 Slant Six is a workhorse. Designed for compactness and even cylinder filling, the engine cants thirty degrees off vertical and hangs the intake manifold off the high side. It made 145 horsepower gross at 4,000 rpm in 1970 trim and ran with very high reliability for very long mileages on indifferent maintenance.
Plenum decodes Slant Six broadcast cells because they are part of the 1970 production record, even though the audience is mostly here for V8s. A 225 Super Bee is a fictional car; a 225 Coronet four-door is real, and someone who inherited one wants to know what it was.