noshow

when driving normally, no noticeable problem, but when in the throttle and around 4k when boost kicks in the car sputters and jumps a hundred rpm's at a time back and forth, and is very hesitant. i believe the cause is spark plugs, but lack enough rotary knowledge to fully back the claim. any input would be greatly appreciated.
thanks

Gold88GXL

i would like to know what this is too.. my 86 gxl does the same thing.. also when making a corner it dies out.. but thats a different subject.. any input would be nice