My son has a mildly built b16b in his eg. He still hasen't upgraded the
cams and I'm wondering if adding a VAFC will help the engine run better/
as in more hp, or is this something that doesn't need to be done until
he ungrades his cams,springs and retainers.

Thanks,

engine:

0.30 overbore
type R pistons / rings
CAI
Skunk 2 IM
d/c ceramic 4/2/1 header
ECU chip upgrade
Engine head re-surfaced
waiting for b16 tranny to arrive, using LS tranny now.