[3.4 grape of wrath]

I haven't had much luck with this engine swap. My car had the original 3.4 liter engine with a t3/t4 garrett turbo. After watching guys go 11 and 10 seconds with the turbocharged 3500 lx9 engine.I decided to upgrade. To date I've only ran 13 and 14 second time slips. Although this was with street tires and a 2600 stall converter. Last year I increased boost from 15 to 20 lbs (approx. 500hp) and torque converter stall speed to 3200 rpm's. As I was headed over to my buddies house to borrow some drag radials I got on the throttle when the engine let loose. I believe it was a bad knock sensor (zero resistance) that caused the carnage.
Looking forward to getting back to the track and see if i can finally get that 11 second slip.