so the title explains what is wrong...when i am boosting, i get past about 5k rpm and its starts to bounce on the gauge cluster and my car starts to sputter a little bit....fuel? spark? i just put a new cap and rotor on to see if that would help but no....check sig. for setup....6psi now though....

 

Check the spark plugs... What do you have them gapped at right now? I would try regapping them to around .022 or .020 if not already.

I had the exact same problem and thats how I resolved the issue.

 

thanks......for the info...any other info while i wait til i get home to see if that might be my problem??

 

i threw some new plugs in and that helped with the stuttering of the car a little....any reason why my tach jumps like that? new dizzy or what?? anyone have similar prob. or might know whats up my car....