[bruceman1968]

All of your decoding is right.
Is the LS9, 350 option on the spid?
You could check the date code on the block to be sure it was cast before 3/01/71.
If you have the protect o plate, the V0301TBG number will be on it.
Any chance of a Buildsheet?
If no P-o-P or Buildsheet, then your pretty much done. Good job on the decoding!!