Part throttle surge VMP 67MM throttle body

[billsecst]

I have a VMP stage 3 blower kit that included their 67mm TB, normal drivability and WOT seem fine, but if you get aggressive and ETC in\hg drop below 5, it has a uncontrolled surge. I have tried to move my predicted, but that did not seem to help. I do not have any IPC errors and the ETC TB errors at the surge point are under 5%. When at WOT, ETC errors are much higher with no surge. I did start with the N\A tune from the vehicle since I could not find a Roush strategy for an auto, may be running into issues from the pressure ratio across TB. I used the cobrajet TB effective and predictive, seeing as that is a twin 65mm. Also used TPS slope for the 14 back cars and moved the hysteresis\blend.Included file and data log.
2016 VMP Stage3 Automatic FSGP1SA.hpt 2016 VMP blower wp8-3.hpl

[auto02]

Ever get this figured out? Having a similar issue myself on my 14.

[Thatwhite5.0]

The 14 is a completely different file. This post was almost a year ago. I'd look into the distance tables and torque tables.
Post your file and tune