1970 Rupp Roadster Engine / Gas Tank Silver Paint

The blackwidowmotorsport.net website lists a silver paint code for 1970 but it doesn't say it's for the engine or gas tank. Can I assume this color is for the engine and gas tank and that they are the same color? Anyone know if the code they list "Microfine Silver", "MB 516" is the right color? I've looked around and really can't find any other information on engine and gas tank color for the 1970 Rupp except at this site.

Any help you can give would really be appreciated!!!