i have a frankenstein 6.0 with 5.3 heads, BTR stage 3 cam 219/224, .551 lift 113 deg, long tube headers 4 inch exhaust, 4 inch CAI. was running fine for several days. came to a stop light, started bucking, died, wouldn't start. unplugged MAF, started, ran like poop, died. swapped MAF, started, died. swapped MAP, started, died. unplugged o2's, started, ran for a bit, died. swapped o2s, cranks, no start. added starting fluid, nothing. checked spark, plenty of it. uploaded stock tune, nothing. reuploaded cam tune, nothing. i dont know what else to check. heres the tune plus a couple log files where it would fire and die, or just crank and no start. any help would be greatly appreciated