The 1969 Pontiac Sales Manual refers to the 335 HP engine option as the 400 HO in the section marked with a tab that says Engines. It lists the same engine as 360 HP in the GTO. The Performance Options tab shows a picture of a GTO hood with a caption that reads,"Hood-Ram Air (Code 611 - UPC T42)". The paragraph below says that it was "available as a regular production option on the Firebird 400 4-barrel, Firebird 400 H.O., GTO 400 4-barrel and GTO 400 H.O., engines only, with or without air conditioning." There is nothing in the pricing section that lists the Ram Air hood as a stand alone option. It has to be part of the engine package.
The Judge page refers to the engine as a "400-Cu.-In., 366-HP, 4-BBL, Ram Air V-8" and it lists "Ram Air IV Engine" as an option.
Under the Prices tab it lists under Engine Options: Sales Code 348 UPC L74 "400, 4 Bbl, Ram Air" $350.72 with a Turbo 400 or a 4 speed and $434.97 without. Sales Code 347 UPC L67 "400, 4 Bbl, Ram Air IV" $832.03 Not available with air conditioning.
The Trans Am section refers to the base engine as a 400 HO.
As inconsistent as the book is, it never mentions a Ram Air III.
