Power piston spring assortment kit, stock spring choice

[GSP7]

I got the 4 power piston assortment pack from Cliff, because the spring looked damaged in this 17080213 carb

Is the blue spring the stock spring for this carb

I read if you have lower idle vacuum because of a "lumby" cam you want a lighter power piston spring so it pulls down the power piston all the way

My cam in this 350 sm block chevy is a RV type cam and has a slight lope at idle: @.050- duration 214 int. 214 ex. , lobe centers 105 int. , 115 ex. , lobe separation 110,  Valve lift .443 int. .443 ex.

Will that cam effect/lower idle vacuum?

Which spring out of the assortment should I use

[GSP7]

Maybe the non colored spring?

??

 I received 4 springs blue, no color, green, orange

[GSP7]

What is the rating of each 4 springs?

Been reading and researching, nothing in the book about rate

 lighter to firmer Orange, Blue, ?, ? .

[quadrajam]

Back track on this same general category to a post on Jan. 23, 2020 @ 06:47:58  .
There is your info.
If it's  not still valid then someone will step in.

QJ

[GSP7]