64 Lemans dash color?
 

I've got a 64 Lemans (GTO clone) that is factory Marimba Red and I'm trying up figure out what the correct interior red color is. The interior is red, but what should the painted surfaces be? Marimba red that's dulled down? I'm a little confused on this. Thanks for any help or links to clear this up.

Here is a link to TCP Global. There are 3 pages of info. Might be what you need:
https://www.autocolorlibrary.com/pag...HorizontalTab3

Great info, thanks! So, if my interior is medium red, the upper part of the dash is an entirely different color than the lower part? I don't see a medium red code in the 0% gloss.

Here is a photo of my interior midway thru. As you can see, the upper part is a flat maroon color. I tried to replicate the stock look for a red interior. Mine is a ‘64 Tempest Custom. Grenadier red exterior, red interior. So I believe I shot for the ‘dark maroon poly’, 50637.

OK, so it looks like the top part is a dulled down version of the exterior color and the lower portion is a color close to the carpet?

I would recommend that you get the Pontiac GTO Restoration guide by Paul Zazzarine. It is an excellent source of information for all things GTO from 1964-1972. I just looked and E-Bay has a copy for about $36.