It sounds very much like "Ram Air III" was just a marketing ploy to make the existing 400HO more sexy- and it certainly worked- to this day the Ram Air III is highly sought after while any mention of 400HO gets a reply such as "no dude- the HO was a 350 engine" Its funny, people get all worked up about the Ram Air mystique... don't get me wrong, cold air induction is cool- (no pun intended)- but the real performance from the RAII and RA IV came mostly from the cam and heads, no? Pontiac marketing was pretty sharp to latch on to that fervor and add an $85 cold air package to an existing motor to create RAIII with no additional engineering needed. Then, put this RAIII in this exciting new TransAm model- and you've got a legend.