[gilg]

I found in other Forum picture of 1974 Camaro Z28 with the same Decal Style as the the Low Miles 1973 Super Duty from another forum and both decals look the same

For 1974 Z28 "BK" is the correct P/S code and is stamped on ink over the decal

For 1973 SD "HG" is the correct P/S code and is stamped on ink over the decal

the correct code for P/S pump its located on BOX 32 in the Build Sheet for both Models

My conclusion is probably this decal is the same for 1973 and 1974 F-body and the codes changes was made on Ink stamp

i posted the pics what i found and also my own version of the decal.