ok i am posting this for my best friend. he has a 97 z28 a4. ok well we put on his power and amp series pullies about 3 weeks ago. the day after his car started to miss at high rpms. so i thought it had something to do with the pullies. we took them off and put the stock ones back on. still missing. so he had it diagnosed and it was the opti. so he had gm put on a new opti and waterpump. thursday he put the new pullies back on thinking there wouldnt be any problem and it was fine. friday morning he took his car to get 3.73s put on. wow! what a difference from the 2.73s. but now his car has the same high rpm miss. would this have anything to do with the pullies? any help would be appreciated!

 

ttt

 

What other mods?

 

Im seriously doubting the pullies having anything to do with the miss. Try and look at all the plugs and wires. It may be time for a replacement.

 

his car has the ss hood and ram air, air foil, and magnaflow

 

welll... since the pullies were put back on and it did it maybe one of hte wires was moved and then damaged by the belt? i hope it isnt another opti