What oil?

Very nice car ! Hard to beat black and chrome on anything. We dont see many black fishes. Last one I saw had rocker trim on it too.
That engine was built for leaded high octane fuel and real oil. You can't get the correct fuel today. You can get the correct oil. Rotella is one that still has ZDT in it. If you can find a lead additive for the fuel , use it too.
Honestly, If that engine hasn't had a timing chain R&R I'd been going into it this winter for that and many other reasons, valve guides,etc...
Not that I'm tying to worry you, just worries me.LOL