Air bleed question, tuning with wideband

Ok... Its in my 70 duster, its got a pretty warmed up 360, 10:1, big cam, no vacuum
727, 2400stall, 3.55 gear...U kno...lol
The carb is a quick fuel race carb with annuler boosters, 4 corner idle
Im tryin to lean out the cruz a/f on the wideband
Shud i be increasing all 4 corners idle air bleed, or mainly just up front
I got the idle a/f dialed in, jus when im cruzin 1500-2000rpm

Im thinkin jus up front shud do it... But what you guys say??
Thanks people!

Oh duster donut videos are nice too!!
That fuel leak is fixed!

[ame]https://youtu.be/lkCojy_P74M[/ame]