Car won't start after driving today

[ZStalker505]

Took the car out to run errands stopped once no issues continued driving... got to a main road and goosed it way to much for 38deg weather traction control kicked in hard came to a stop light idled normal when I took off it was very hesitant and did not want to accelerate like normal at all. Seemed like the engine was cutting power like traction control but under normal mild acceleration. I thought I would stop turn the car off let it sit about 30 seconds. Car turned over but will not start. Tried it about 8 times or so. Had to push it about 200 yards home.
Any thoughts?
Car is extremely modified and I don't even know where to begin. Has ecutek flex fuel running about 20%E at the moment. Dual fuel pumps return system front fuel pressure Guage, JMS fuelmax, 1300 injectors.