What Tamiya X-6 bottle paint formula makes a believable Chevrolet Engine Red color?

[chepp]

For example, what proportions of Tamiya X-6 Orange, X-7 Red, and/or X-8 Lemon Yellow would be good?

[Shark]

I normally don't mix paints to achieve a certain color, I'm colorblind. So I look for these already made up. MCW now has small jars of unthinned enamels in lots of useful shades such as correct engine colors, tinted carburetor and others.