What color for my engine bay?

We have a thread going around about what color to paint your engine, by the way all of your engine bays looked great. So my question which is a spinoff of that thread. I'm going to 2 tone my car its a 71 Duster, from the 1st bodyline below the fender edge, it is going to be gloss black. below that is a dark charcoal. Basically ripping off Kenny Wayne Shepards Duster paint scheme. What color should I paint the engine compartment? My engine is going to be Viper Red and I am going to paint the intake red also. Thanks.