T-bird Tim
Registered User
I had nmy motor overhauled two weeks ago. While in the shop I had it bored 30 over and installed larger fuel injectors. I drove it for a week then took it to get tuned. During the dyno run the engine started making a bad knock so I took it back to the shop that built the motor. They had it for two days and told me that one of the head bolts had backed out about an inch and a half. They put new head bolts in it and I took it. New problem now. It seems to have a miss at low speeds but does fine at highway speeds. I changed the plugs and wires still no fix. I am waiting for my new sampling tube to get here so I can get the tune finished. When I am at a light or stopped anywhere with the car in gear and my foot on the brake; the whole car shakes as if it wants to be a drag car. It's feels like an even miss and is very rhythmic. I have to put it in neutral so it will smooth out. Any ideas or does it just need the tuning finished?