This is just an informational post for whoever may be curious. SS350 with original powertrain and non-AC, a spacesaver tire in the trunk. I replaced the original front and rear 5-leaf springs and installed new Koni shocks. I was worried about the replacement springs because they are a generalized version of what was available as original equipment. Here is what I purchased, and a picture of the resulting stance.
1967-1969 Front Coil Springs SB w/o AC Premium Quality
1968 - 1969 Leaf Springs Set, Multi Leaf, Rear, 5 Leaf, Pair, USA
2 of : 1967 - 1969 Camaro Koni Red Front Shock, Each
1967 - 1969 Camaro Koni Red Multi Leaf Rear Shock, Each
I don't know if its appropriate on this forum to mention the vendor, so I will leave that out until told otherwise.