Frankly, we don't know what you'd call our 400 after you've opted for a 400 H.O. with its high-output cam and free-flowing exhaust. Maybe even with a Ram Air Package.
Pontiac's own literature means nothing?
Many invoices that say 400 H.O. PHS can differentiate between which are Ram Air and which are H.O. when they run a VIN. How? Because of the presence or absence of the 611.
Sammiesbird, are you out there with your "wrong" 400 H.O. sheet?
Vikki 1969 Goldenrod Yellow / black 400 convertible numbers matching
