Mikaw wrote: . It’s not just the main jet, it’s the stack effect of all needle and jets combined that need attention to tweak performance.
EDIT, the air corrector jets are only for the pilot circuit. They my help transitioning from pilot to the main circuit but installing them has no effect on the main jet.
As you say, The stack up of all the jets add to the final size needed for the main.
In the case of the air correctors these do affect the eventual size of the main as the richening effect on the off idle mix does transition to a lessening degree throughout the rest of the fueling
In comparison to the more complicated ,less refined and crude method of lifting the needles and fitting larger pilots to try and smooth the off idle hesitation the simple use of the air correctors often result in being able to use a slightly smaller main .
As mentioned previously Gordone, You should retain all the carbs stock settings as a baseline and start with only increasing the main jet as you have for the larger capacity .
Once you are satisfied with the top end fueling you should work down.
Any slight changes needed to richen the pilot mix should be able to be covered by adjustment on the air screw.