How to read carb calibration chart?

I noticed your cam duration and it looks like 18 to 20 would be a great initial timing.... Do you have vacuum and mechanical advance? And what's your total timing when you have it over like 3 Grand?.. timing is very first thing you want to check but again when you have a performance cam it likes a lot of initial timing to get started.. Factory cams generally are in the 8 to 12 or lower initial timing with vacuum and centrifical advance..