Sorry it took a while to respond to this - I recently took my 467 apart (from the condition and appearance I believe I'm the first to do this). It has the 532 cam, and the shaft is marked "48" under the plate on the end of the shaft (see grainy pic). It does not correspond to the listed part number in my parts manual, which should be the same for all 3 years of 302's - 1969762. Since you've got my curiousity started, I'm going to look at my 480 and 499 shafts to see what marking is on them.
P.S. I forgot to add the springs and weights part numbers - 1969107 springs for 67-68 302's. weights were 2 possibilities - 1880902 (67-68 Camaro exc. 327,4BC 350) or 1965843 (68 Camaro w/ Sp. H/Per, 327, also 66-70 350 w/A.I.R., pass 396, 68 Chevy Camaro 350 exc. PG). If I can find any markings on the weights, I'll post them too -