Vacuum Caps - What size for air/K&N?

What size vacumm caps do I need to plug up the two fitings AIR fitings on the intake manifold, also what size cap do I need to plug up the AIR tube on a K&N FIPK?


Thanks

I can't remember the exact sizes that I used, but I know I just used trial and error. Parts stores sell vacuum caps in packs, so I just bought a pack of the smaller ones, a pack of the larger ones, spent $8, and went from there.

Edit: I just went and found my extra caps, and I think I used a 1/8" cap and a 5/16" cap for the intake manifold. For the air intake, I'm pretty sure I used a 3/4" cap. I hope those are the correct sizes, as I have a few caps missing!