Engine not idling right

[jondee86]

OK... there a few things not making sense here

The standard AE101 manifold has two connections for brake vacuum. One
off the first throttle and one off the last throttle. I would expect them to let
in enough air to jump the idle at least 200-300 rpm when you disconnect
the booster hose.

Can you feel the engine making vacuum at idle off any of the connections
to the common vacuum rail ?

How does the engine get idle air ? Are you using the OEM ISCV ?

Have you had a timing light on the engine to see if the actual spark timing
matches to the timing indicated by the ECU ?

Cheers... jondee86