Whats the difference between a 400 H.O. Firebird vs an identically equipped Ram Air Firebird?
Functional (cold air) ram air induction came on the 69 RA III. 68-9 400HO cars did not have this. Besides this, they are 100% identical (ie ra III did NOT have a different carb settings, cam, heads, exhaust manifolds etc) As I recently mentioned, if you wanted all the hardware and performance upgrades that the “Ram Air Performance Package” truely offered (i.e. cold air induction PLUS better flowing heads/stiffer valve springs, 3.90/4.33 rear, radical cam, stronger valvetrain, etc) you HAD to get the RA IV (not the RA III/400HO ) in 1969. In 1968, the RA I or RA II (and not the 400HO) had to be ordered. Think of it this way….
