Sorry to hear that!
I'm spinning the guts out of the little 2200 that could with a 3.00 pulley & 20% OD & the K&N is doing just fine under boost so far.
I'm wastgated with a 12lb spring but my boost controller reads out 14lbs at 6900rpms & up. Im on 93 octane & 16 degrees up top. It made 689whp (auto) with everything being the same but at the time of the dyno pull it was 93 degrees plus it had a jlt intake & 3.47 pulley.
I put the boost controller, the k&n filter on the head unit & the 3.00 pulley on at the same time after the 1st dyno pull so I have no numbers on the new set up. All I can say is I once had 2nd gear traction with R888 but now that's a negative even at 60mph.
The car goes to the shop this Mon for a final pull on 93 before switching to e85. So I will update with before & after numbers, if the car is happy I might add 1lb of boost also. Goal is 800ish whp then working on traction.