Help. Just as the thread says the car is a dog below 3000 rpms. I've pulled the plugs and the tips are white and the base is black telling me that the car is lean at part throttle. Above 3000 the car feels strong. At the track a couple of weeks ago the car ran a best of 13.8. If you look at my sig it ran 12.18 last fall before spinning a bearing. The motor was rebuilt and still has the same cam. I am hoping it is just in tunning but what gives. I have just today put in new NGK TR55's gapped at .040 and replaced the bad MSD 6AL box. I am going to redo the valve lash tommorow before going to the track. If anyone has any info that might help please cough it up.
HVY SS