tbh it wont make any difference as the gas analyser goes in the tail pipe and reads from their , so providing each carb is set the same then it will be fine when i done the dyno the art was how to read the gas analyser and how the bike reacted on each run and what the bhp graph looked like , as for pod filters imo they are a total waste of time as they are far to prone to atmospheric changes and run different every time best thing to do for the road is get the airbox back on it then the carbs are all getting the same breathing every pod breaths different