I used plug wires like that, they may be Thundervolts.. you might have upgraded coils.
Do you know if it has a cam or bore kit in it? Check valve clearances and write them down before adjusting (in case it has a hotter cam)
if you get a chance pull of the chain cover at the front sprocket, clean a bit on the case around the chain, look for damage. They often threw chains, and cases are sometimes welded or temporarily repaired. If it is its not the end of the world, but it does affect value a bit, and may influence wether you cafe it or not.