Ok i have one massive surging problem
here is what i have replaced and all is is perfect working condition

1) new fuel filter
2) injector cleaner
3) new taylor 8mm wires
4) new opti
5) new tr-6s for nitrous

What is going on with my car, any sugestions are welcome.

 

My 91 had terrible seuging problems right after I bought it. Turned out the fuel injectors were going bad. You may want to look at that if you have a lot of miles.

 

Is it throwing any codes? Mine was doing that and I replaced the O2 sensors and that made a difference. If one is faulty it can make your car run lean. I had a code 44 without a check engine light. After we did the work it cleared.