Throttle and Kickdown linkage return springs?

[Tirekickertoo]

Hello,
I've searched the web to purchase 1970 Dodge Challenger throttle and 727 automatic transmission kick down linkage return springs and see that there are a lot of choices. There is discussion on what color springs to use as well. Everything from white to red to green and even unpainted steel. I'm running a small block with a four barrel carburetor and mechanical transmission kick down linkages. I'm looking for vendors and part numbers to order both springs if possible.

Thanks for your help,

Tirekickertoo