There is no benefit to fitting pod filters unless you change the Carbs to none Constant velocity ones IMHO.It's purely cosmetic and actually decreases performance overall.The Honda fuel system using CV carbs rely on the Air-box and filter system and to some degree the engine oil blow-back for the correct carburetion as it does with the Collector/balance box and correct exhausts.
As the low speed idle mixture circuit is not changeable just changing jets will not achieve the desired effects that a None CV set of carbs could be tuned to for better performance.Some people who have fitted pods have managed to get closer by fitting a pipe across the carbs to aid a more balanced and metered air-flow.You may gain some upper rev band power but stop/start normal riding will be affected e.g from 1100 rpm to say 3,000 rpm.
I would image the guru of tuning would be this guy,
I'm sure I'm not 100% right above but there's a lot more to getting an engine right after altering from stock than people imagine and unless you have access to proper test gear e.g Dyno/Rolling roads/Exhaust gas analyses etc it would be very hard to compete with the multi million pound/dollar testing gear people like Honda have.
However this should not stop people trying and good luck to them