Hi
pod filters are just lil air filters on your carbs. As for the vacumm on mine just cap them, I have hose with a bolt in it on mine and the #2 is pluged into the gas tank vacumm nipple. Now the cam cover breather and the crank case I put some k & n breathers on them. I will try and post some pics. You will have to rejet your carbs for air pods. There are lots of guides out there. Z1enterprises has a lot of that stuff.
James
1982 KZ 750 LTD H3
V & H 4 in 1
Air pods
Dynajet III