I feel your pain. i'm having the same problem. stumble at 2500-3000 and misfire in cyl 2 and 3. replaced plugs, swapped coilpacks and doing fuel pump and fuel filter this week. although i'm sure it's the injectors. luckily i still have my stock injectors i will send out this week to perrin to have modified as i bought my perrin modifieds i have in the car now used. hopefully after way to much diagnosing i will have it all fixed next week. glad to see the hulk is happy again.
sheldon