Metering Plates, six pack

Was looking at my options, met a drag racer from Minnesota at a mopar drag race this past weekend. Someone named Brad VanLant did his carbs. on his race car. He has used pro max and metering plates. Is currently using metering plates. Can not reach VanLant, supposed to have previously been with Holley.
Long story, bought car last year and had Phil Fish go through my carbs, big mistake.
Anyway, he took the pro max plates out and put the Holley metering plates back in.
I am trying to get a stagger for jetting on my new 418 engine. Right now, thinking that I will put the pro max's back in. It just seems like it could be a shorter road if I had a ballpark starting point. Trying to follow the article " how to tune a six pack ".
Thank you!