Running fine then cuts off, no restart. SR

[OBEEWON]

The issue. I installed Sard 850cc injectors a few days ago. Car ran fine.

Today I installed my 264 cams and the car ran and drove fine.

Then I installed new plugs and pop filter and it was, again, running fine.

I had it idling for about 15 -20 min in the driveway and it starts to run slightly rough(the average person wouldn't be able to hear the difference it was so slight) then it cuts off. I tried to crank it and turned but no start.

Checked all fuses, pulled plugs for injectors, turned it so I know its not flooding. Im very confused as to what it could be. It sounds like its getting no spark because when you crank it turns over smoothly like when you take out your spark plugs and coil packs to clear a flooded engine of gas.

Just a little more info:
SR20DET
Car is ROM tuned for 272 cams, 740cc injectors.
I did 15% correction on my SAFC to compensate for the 850cc injectors.


Thanks for any help.
OB