i have 9psi (spike valve), stock cooler, stock turbz, pod, no hi-flow cat, dump/front pipe and a cat back and i did a 14.07 @ 98.6mph with a 2.11 60' i doubt a mid to low 13 is possible because kym is running ~260hp @wheels and i was beating him all that night and his best ever is a 13.98... good luck with the run tho...
ps. with no afr control...i would say keep the boost about 11psi and get about 240hp so you dont run too rich...