Hey Deuce . . .

I think it may even be a bit darker than that.

For me, when I think of Gray I think of a lighter color with RGB hues approaching 190:
Taylored Marketing.

For those who are not familiar with color matching on the computer. It's pretty easy with Microsoft Office (Word, Excel or PowerPoint).

Here's a comparison of the color of the NOS valve cover from ebay and the claimed un-restored '50 from the fast cool cars site:

as you can see the valve cover is a very dark with hues below 70 and a tad bit more blue then red & green. Even the "un-restored" engine is darker then 190/190/190 gray and again with a bit more blue in the mix.

What is interesting is that the Filling Station sells a darker gray as being correct when compared to the one sold by ChevsOfTheForties .

The provenance attached to the dark gray paint available from the Filling Station indicates that it comes from fellow Inliner and VCCA member Dick Bertolucci.

Here's a link to all the pics of the '50 at FastCoolCars .

So to Drew's point - the color is Gray - the shade is a matter of opinion.

regards,
stock49