[supercarmodeler]

I am looking to model some of the supercars. currently working on

67 Nickey Camaro
68 Yenko Camaro
69 ZL-1 Camaro
69 Yenko Nova

What I need help with for you people who know is

did the supercars ever come with aftermarket plug wires or where they all black.
What color are the chassis, fuel tank, frame ETC?

I would appreciate any and all help that I can get to make my models as accuate as possible.

Thanks
Tim