Still chasing minor issues HRT stage 2

[StupidJeep]

0808 tune file with pt surge.hpt
Part throttle surging 0808.hpl

I am still having a big stumble at a very slight touch of the throttle. it does seem to be worse in reverse which leads me to believe its an air flow issue. im just not sure how to log or what Im looking for as far as min air flow and start up air flow goes.. Attached is a log and a currant tune. Trims are off a bit still....
At the end of the log there is a good example of the stumble and swings.

Any pointers are welcome.

Thanks!

[briglicon]

Part throttle surging? Me too...

[StupidJeep]

Got it sorted out for the most part. dropped PT spark in first three columns and smoothed out. That then created idle surging which I seemed to tame with increasing the Min air flow table in the firsts couple cells.