Found this Q Jet baseplate. It's NOS although I have no idea of the exact application. It's got no APT screw in it. Casting/ part number looks like 703482x. Cant make out the last number. Im thinking its a 67 part because it came with the thin matal baseplate gasket with it. Pretty sure that was only on 67 and earlier manifolds. Any ideas?
I'd like to see a pic from underneath. The fast idle cam follower is the early style, used thru 67 and maybe til 68. Preliminary guess, 1967 buick. I will check my books.
Did 67-68 use an APT screw in the throttle body and if so, did they they forget to machine and install it? I didn't think the green, Teflon coating seen on the secondary lever was used until the mid to late 70's, but my memory on this stuff is fading.
