Chandler Groves Carb Logic?

[Fred A]

About a half century ago I ran these carbs in singles and doubles on my A but the supply chain for power valves has become more specific since then. To avoid incorrect enrichment we would ask for economizer valves for Ford 94, 92, or Zephyr and some forgotten others. The vacuum pulses were a problem for these V8 carbs on the models A/B. To tame these pulses with vacuum power valves which way should I nudge the choices. The recommendations for the V8 are pretty well known, but the bangers get far less attention. Any educated guesses for the Models A/B with mildish cam and 7:1 and straight through muffler? Trying to get a renewed sense of this kind of tuneing. Thanks: Fred A