ok, so my car is back together and went on the dyno today..it pulled well up to 5k..and then from 5k-5600 rpm it broke up pretty bad..and then from 5600-6500 it was fine. i have new plugs, wires, opti, everything..but stock ignition. do you guys think an msd ignition box will fix this?? i did the search but couldnt find exactly what i needed..so thanks guys!!!

 

If it pulls fine from 5,600 and up, it's not your ignition. Could be a tuning issue.