I was wondering if anyone could tell me what I have here? I believe the box says Racer Brown. Pics attached...very vintage, hard to read. I took one out to show it’s a double spring with a damper as well. Someone wrote on the box Hemi Valve Springs. Does anyone have any old Racer Brown paperwork? Just curious what they are good for? Thanks!

The outer spring is

The OD is 1.487
The ID is 1.04
Wire diameter is .201
Height is 1.950
Also has a damper in it.

The inner spring is
OD .985
ID .725
Wire diameter .123
Height 2.049

Thanks guys.