Metacortex

Yes indeed, I wrote about the two variations of cams here. Due to very different lengths the wrong kickstand would most likely not work at all (the '71 and later SS had a kickstand marked \\\349///)). Also there is little chance that the '70 and earlier cam was used on a '73 bike (and if it was, the effect would be the opposite of what is described, the bike would lean over more). However it is entirely possible that manufacturing variations on the '71 and later cams could cause the kickstand to remain too vertical. I'll have to add the cam into my inspection of my bike with the same problem, however being that the cam is a machine manufactured item it is still most likely that the hand built frame (specifically the angle of the brazed on kickstand tube) is the real cause.