vacuum gauge to solve idle issue

Well Im into it now. Definitely crap in there. Carb is pretty much stripped down. Factory primary jets are 0.100" metering rods are 7047 (1405 carb) but we added edelbrock electric choke kit 4 years ago.
Besides the cleaning it needed, I think its running rich and might be over carbed for the engine.
So while apart I was going to change metering rods and/or primary jeys or both. Heres kits I have. BUT I don't have any kits for the secondary jets
If I change primaries is it recommended to change secondary as well. Or is its done "as required" ?
Step up springs are factory orange. I have complete spring kit as well
Thanks for the help.
Steve

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