Added input from several more Camaros located in the Indianapolis area where I live and inspected:
10A (early, pre-X code), Z28, NW, bolt in, from Dave69X33, friends car, original, restored.
10B (early, pre-X code), std. 327, NW, push in, from KevinW.
10D (early, pre-X code), std. 327, NW, push in, from Dave69x33, friends car, original owner, unrestored.
12B (early, pre-X code), RS Z28, VN, push in, HOT302.
01B, X11 SS350, NW, push in, Iowa Jon.
01B, SS/RS 350, VN, push in, from x66 714.
02B, X33, RS Z28, push in, from Edgemontvllage, original unrestored (see photo included in this discussion).
02D, X33 Z28, NW, push in, from RikerZ28.
02D, X66 L78 SS396 (survivor), NW, bolt in, from Edgemontvillage, Doug Perry's car (see photo included in this discussion).
02D, X66 L78 SS396, NW, push in, from Dave69X33, friend's car.
03E, X33 non-RS Z28, NW, Legends Certified 2023, push in, from Dave69X33, friend's car, original, restored.
03E, X11, NW, push in, from Clete.
04C, model?, plant? push in, from L78 steve.
04C, Z11 L48 Pace Car, VN, push in, from 169INDY.
04C, Z10, NW, push in, from Dusk Blue Z.
04C, Z11 Pace Car, NW, bolt in, from Dave69X33, friends car, original restored. Note: Same round rubber bolt in style Edgemontvillage showed in the 02D X66 L78 SS survivor.
05A, SS, VN, bolt in, from KevinW.
05A, X33 RS Z28, NW, push in, Dave69x33' car, original restored (see photo included in this discussion).
05A, X77 Z28, NW, push in, from Iowa Jon.
05A, X77 Z28, NW, bolt in, from x77-69z28.
05A, X77 Z28, NW, push in, from Dusk Blue Z.
05C, Z11 Pace Car, NW, push in, from Dave69x33, friend's car.
05E, X77 Z28, NW, bolt in, from copo.
05E, X77 Z28, NW, push in, from Dave69x33, friend's car.
06A, X44, NW bolt in, from copo.
08E, X66 SS396, NW, bush in, from x66 714.
09C, X77 Z28, NW, push in, from Badshifter.
09C. X33 Z28, NW, push in, from john jay 69Z.
09D, X44 427 COPO, NW, push in, from R68 GTO (COPO BE axle).
09D, X77 Z28 JL8, NW, push in, from Dave69x33, friend's car, original restored, owned since 1978.
09D, X77 Z28, NW, bolt-in, from 68camaroZ28, Skip's unrestored survivor.