Sr20 issues...help?

[DarkStar]

Ok...here's my problem. The TPS is new, the coil packs are fine, the spark plugs are new, everything. My problem is that when I'm getting into boost, ANY amount, the car bucks and gets NO power, but builds boost slowly and backfires lightly. The BOV is recirculated and not leaking any. Checked the ECU for codes, getting 55 (no complications). The shop today told me that the CAS might be bad. This was because they took it apart and they said that the leads were pretty jacked up looking and that the rubber seal had been stretched over them. I'm also not getting any boost/vaccum leaks that I've been able to find. Any ideas, or does anyone have/had the same problem?

[180fan]

not sure why the cas would do something like that. how much boost you running?