i'm thinking my stumbling problem might be related to my Skunk2 IM.

it seems that my car runs very very very weak from 1500rpm-7000rpms.

replaced the O2 sensor.
replaced injectors
replaced distributor
fuel pump is pushing 35psi at idle, 38-40 at wot.

next is the spark plugs and wires...

I'm going to remove the skunk2 IM and see if there's anything mixed up. after that, i'm stuck, I have no clue what my low power issue is.