7875 + 5.9 + E85 + Megasquirt

Made it to the track yesterday. It was a really hot humid day and rain stopped us on a couple of occasions but I got like 8 runs in which is amazing,
My best was a 6.65 at 108mph. I gave it all the boost (100% DC on boost controller) and hit a max of about 18.5psi. The engine was cutting out about 50’ from the stripe. You can hear it here.

You can definitely hear it cutting out. Can you tell in the log what was dropping? Still crank signal?