Unknown limiter at 6400rpm P01

Ive got a car that is the exact copy of two other cars we have done parts wise and I keep hitting a limiter or something that causes the engine to die once it reaches 6400rpm. If you keep it under 6400rpm the car drives normal and doesn't exhibit any issues. As soon as you touch 6400rpm the motor just comes back down and dies, peddling the gas or anything else wont keep it from stalling.

I can replicated the issue under load or free revving, scanner stays connected and doesnt loose any channels when it happens. Can replicated problem without scanner connected as well. So far this car now has a new engine harness, new crank/cam sensors, two different LPE 24x/58x boxes and I have tried a new ecu with stock OS, 2bar OS, and 3bar OS.

Mods:
LS3 crate motor with cam
ID1050x
Return style fuel system
Procharger D1x

I did not save a log but I am going to get one today as the car has come back up in my rotation.

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I took a look and I personally dont see anything. Definitely need to see the log...

Updated original post with two logs showing it cut out at two different rpms ranges now instead of 6400. Seems to be random now