S&S 14MM High Speed Pump

[Twistedshafts]

Wondering if anyone has advice to offer on tuning the modified FCA that comes on the S&S high-speed pump. Getting some pretty bad rail surge.

[6.7gen1]

Did you ever get this sorted out? I currently have the same pump and same issue. I was able to get it smoothed out some by playing around with the duty cycle to current conversion table. But I still get a little oscillation and on high rpm shifts it will overshoot and pop my rail pressure relief valve.