an problems updating the crom when using custom tunes? e.g. compatibility etc.? I'm at 28 currently.

This was my first dyno - no idea what type it is. Their web site says: 160-mph Dyno Dynamics chassis dyno though.

Just got back from the Dyno and saw 315.1 RWHP 371 torq on my 2009 Charger R/T w/91 CAI tune ( running u7135-9r20.crom, mopar CAI, BT Catch Can).
The tech did say he thought it was running rich. Scan of numbers attached.

The tech at the shop said ideally he'd like to see 12s throughout. I'd like ...