4AGE 20v ITB vacuum instructions on Intecracing.com

[jondee86]

You can use any of the tubes that connect into the common vacuum
rail that runs across the top of the intake runners (has a screwed down
cover on top). That big tube is from the ISCV... most people will use one
of the smaller tubes above the ISCV tube..

The MAP signal and FPR signal like a bit of damping. You can get this by
using an old in-line fuel filter, or the little round white plastic pulsation
dampers used by Toyota on a lot of engines. Large hoses are not necessary
on signal lines.

Keep your brake booster line separate from the signal lines.

Cheers... jondee96