I will be amazed if the response is anything other then the stock jets just adjusted properly. If your K&N felt filters are properly oiled you haven't really changed anything that will alter the fuel to air ratio appreciably.Hi,
this is Lukas from Germany. I also wrote you an private message, but I Think you did not see it yet.
I fortuitously found your thread in Google about the pod filters on Mikuni VM22 carbs on a 1979 Suzuki GS 550.
I am also building up a GS550 and it was very interesting for me to see your pictures that with normal low cost pod filters the air passages are blocked / could be blocked. So I decided to buy the K&N pod filters shown in your thread.
And now my question:
Could you please tell me your carb settings with the K&N installed? Main jet size, pilot jet, Needle,..?
That would be very great and a big support for me and my project
If you also made huge exhaust system changes at the same time possibly, but you have not indicated that.
K&N air filters don't actually pound 50% more air into your carburetor then a brand new clean OEM paper filter, their claim to fame is that they trap and hold dirt more efficiently and while doing so their ability to allow air flow is less affected. Properly serviced, they hold more dirt, are impervious to the affects of water and still pass air where a dirty paper filter would clog up and starve your motor for air.