Yep mine would do it with that level of fuel on a hard enough pull
I and it was like a violent head but the wheel cut out for a split second and then the pump would pick up again

I have a second pump feeding the stock bucket now like z1s idea

Again not saying this is the issue but a simple one to rule out/test


Sent from my SM-G960F using Tapatalk

I ran some test runs last night and this morning ... haven’t had the issue pulling 11 lbs smoothly ... I’m keeping my eye on it .. and I’ll go through it more this weekend

Test with a full tank and see if that clears it up. If the top hat on the fuel pump has broken (mine did) it will cause fuel feed issues.

For reference, my stock fuel pump top hat broke and I experienced full fuel starve with more than 3/4 full tank. Car shut down and wouldn't start up. Had other times since where the car sputtered hard on the throttle out of a turn before recovering. Now I have the CJM billet top hat and Road Race Pump Kit :driving:

When mine cut out it never cut off ....it would just decrease rpms even with pedal still to the floor ...if I lift the pedal up it would idle normal ....and start working normally ......haven’t had the issue since reflashing

Mine was the same until my tuner mapped the car to shut **** down fast if it saw lean afr on wot

Sent from my SM-G960F using Tapatalk