unruhjonny,
"But, there was a pre-production RAIV Trans Am in the fleet of cars - that one which I highlighted as red, WAS a RAIV car - the images make it plainly obvious."
Can you clarify a little bit?
If you're looking at the Chestnut EBOOK, there is for sure a Ram Air IV car & scoop shown clearly.
But I think those are new pictures, as he has done all thru the Ebook (a great effort, but not error-free).
In the Brooklands reprint I have of the original 13.90 at 102 article, Hot Rod Feb 1970, the Ram Air Trans Am is white (a different car than Chestnut shows) and there is no detail I can see that shows a RA4.
The original text makes note of a 330hp and optional 345hp Ram Air (standard in Trans Am) but no option above that. The RA3 was standard in the Trans Am, right? Then when they note the 13.90 at 102, it says (345hp Ram Air and 4-speed) ie per their own text, the "standard" Trans Am engine, ie the RA3, with a 1969 rating?
That plus the link from this forum 18 years back:
https://forums.maxperformanceinc.com....php?p=2226748
(Text below) - this is why I wondered, maybe the RA4 was a late-1970 addition to the already-1970-1/2 Firebird?
Just trying to sort it all out.
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Old 02-25-2004, 01:27 PM
'ol Pinion head 'ol Pinion head is offline
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No such animal.
The RA4 engine was only avail during the '70 1/2 Bird production when ordered in a T/A, & that was at the very end of '70 1/2 production.