Jerry:
Given the 4 barrel manifold probably has a common "chamber" where all fuel/air mixture passes is there a way to keep both barrels of his carb contributing to idle evenly and not having one rich and the other lean? Or am I overthinking the (non) issue?

'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.