How to read carb calibration chart?

Looking through Summit I found one set of Edelbrock rods for $15 and a Summit set for $7. A pack of springs is $10 and a pair of jets is $8. Crazy how expensive these little pieces are, but if they’ll make the carb stop flooding my oil and making the Lost island monster stop following me around, I think it’s worth it. I’m going to keep looking around for a wide band because I feel like I can get one cheaper than $212

Look on Ebay. There's a seller called Ninja Fuel Systems. They are located in Georgia. I use them a lot.