Whoa - hold on there cowboy. Id'ing a real Ram Air IV takes a lot more than a decal or two. There are some engine codes that you're going to need to check - in this order.
1) Engine date code - 4 character code - top rear center of the block next to the distributor hole.
2) Engine casting number - passenger side rear of the block, down low below the head, near the transmission mount flange - 7 digit number that should begin with 979
3) 2 character engine code, passenger side front of the block, just underneath the head. 1970 RA IV will be either WW or XP.
4) Cylinder heads. Center two exhaust ports will be Round - not D-shaped like 99% of all the other Pontiac engines. Cylinder head code for Ram Air IV heads will be found on top of the drivers side FRONT exhaust port. 1969 is 722, 1970 is 614.
If all those numbers line up, then yep - you've got yourself a Ram Air IV engine and are one lucky dude.
If not, then post back what all those codes are and we'll help you ID what it really is.
Also, be aware of a couple things:
* Ram Air IV intake manifolds were 2-piece units. The manifold itself was aluminum, the exhaust crossover (part in the center of the manifold that runs between the two heads and goes under the carburetor) was a separate piece and was made out of case iron. Regular Pontiac intakes are all one piece and made out of cast iron.
* A/C wasn't an available option on Ram Air IV cars, not from the factory anyway.