I would just like to know.

 

no. In the 60s and/or 1970 there were W31 (Cutlass or F85), and W34 (Toronado) also.

 

All the 1970 Cutlass pace cars had the W25 hood

 

as did the Rallye 350

 

this was discussed on another thread one of those years I think 72 it was technically available on almost all A-bodies.

As well as 72 H/Os as they weren't 442s either and the 72 vista cruiser H/Os came with it too.

 

FlapJackDan,
Welcome to C.O.
Force Air Induction was the term used on the 68/69 442's and had twin tubes that ran to air intakes just under the front bumper IIRC. After that the terminology changed to OAI (Outside Air Induction) and the intake system was changed to reflect the new hood. Lots of folks still call any car with hood scoops ram air, but the term is more specific to Pontiac and Buick.

From 1970 - 1972 the OAI hood could be ordered on most of the 2 door A bodies. It came standard on some models such as the ones noted by others ^^ and ALL W30 cars as well.

 

Just to set the record straight, the original term Olds used was OAI (Outside Air Induction) starting in 1966 with the introduction of the w30. This continued through the "end" of the performance air induction systems in 1972.
In '68 Olds marketing started to use the term "Force-Air Induction" in addition to OAI, and this term too carried out thru '72.. It was used not just with the 442s (W30 and W32) but with the non-442 W31 equipped models, the W34 Toronados, and the W25 hoods themselves. So the term was not changed in '70, let alone changed to reflect the new hood.

There is lots of reference material to see this on Wild About Cars. The SPECS booklets and parts books are examples.
Wild About Cars. http://wildaboutcars.com. An information supersource, especially Oldsmobile. More Olds content than anywhere else on the internet and continuing to grow.
You'll find Chassis Service Manuals, Product Information Manuals (AKA Assembly Manuals), Inspector's Manuals, and other documents that will contain this and much much more.
Dealer Brochures, magazine ads and articles, and the Automotive History Preservation Society library growing daily.
Free to join, free to learn

 

The 1966 W30 window sticker said Force-Air Induction. Parts Dept. used the O.A.I. designation.

 

To even more completely answer the O.P.'s question, for the 1966-67 model years, O.A.I (Ram Air is a Pontiac term) was only offered with the W-30 option on the 442 cars. In 1968-69, O.A.I. was also available on the Cutlass and F-85 cars with the W-31 option. In 1970 you could still get the W-31 on the Cutlass/F-85 cars but you could also get the W-25 O.A.I. hood and air cleaner on pretty much any 2dr Cutlass. This continued for the 1971-72 model years.

 

Definitely a mix of the 2 terms were used. For the duration, too, I see. '67 bulletins and '67 442 Sales brochure say Force Air too. '67 Assembly manual says OAI.
Leads me to believe OAI was an engineering term and Force-Air was marketing. (external vs. internal documents).