What's the best engine paint for the red that's on the early slant 6s and 273s?

As far as I know there are 2 different shades of IH Red. The cherry colored on I sampled above was the early color. Not orange enough for me too. Yes, use whatever you like. As long as it isn't Hemi Orange. LOL
I certainly can, especially, when I compared this area to the back of the distributor when I pulled the motor, and they looked exactly the same.
Sorry, I didn't mean anything by what I said. I don't know how many you sampled and many people don't realise how much the original paint fades, ages, and changes colors in 50 years.