Sure sounds like ignition to me have you chccked the ignition control module under the coils? Coil could be bad too but do you have a misfire light or what? ICM and coils are far more likely the problem. Also the coils should have some dielectric grease under them where they sit on the ICM. Highly doubt its an injector ive owned 7 w bodies not a single one has had an injector problem now coils and ICM on the other hand ive done 4 coils and 2 ICM's between all the ones Ive owned. My best suggestion is stop guessing and scan the car!!!
