I am an Olds guy and just found this via link from an Olds forum. First, not to be nit picky but the closest thing I found to a '64 442 air cleaner is to take 2 4bbl '65 GTO air cleaner, cut the snorkel off one, shape it a bit and stick it on the other. The Toro air cleaner is too big and flat. Also, you could use the '66 442 conv for a correct 4bbl intake and you get the a/c set-up as well to compliment the a/c firewall. The hardtop 442 has the a/c firewall but no a/c which I have yet to find a nice non a/c firewall to replace it. I built the R&R '65 442 which was my first resin kit and man, what a pain it was, I pretty much mirrored what is being shown here, putting the '66 under it and it took a bunch of work, even more with the ideas I kept coming up with, it didn't turn out as nice as the '64 but it is a decent representation of a '65. Also, here is a pic of a correct '64 442 air cleaner to get ideas