fuel pressure @30 still rich at idle

[663csx-t]

i have a 88 csx-t 2.5 pistons are 20 over (useing 2.2 computer)255 fuel pump 20%injecters(#495)afpr garret turbo all tll 798 head (stock) 2 pice intake 52mm tb i dont under stand way im running rich @ idle can any one help

[cordes]

How do you know it's running rich? Are you getting any codes?

I don't mean to be rude, but with the exceptionally low cost of doing your own cals, and the vendors which have them for sale, there is no reason to be running the wrong computer for the motor these days. I'm sure that is a contributing factor.

[663csx-t]

i have a auto meter a/f gauge it says its running rich at idle

[cordes]

i have a auto meter a/f gauge it says its running rich at idle

A wideband gauge or narrow band? A NB gauge can read full rich as lean as 13:1.