1966 289 Mustang Vibration
I purchased my second classic mustang a few months ago. It’s a 1966 2 barrel 289 with a C4 automatic. It drove great during the test drive but it had issues on the highway home it kept cutting on and off at highway speeds I had to get it towed home. Anyways since then I have been trying to get the car to start running the way it should. However it has a bad vibration in idle, the hood shakes badly and so do the rest of the car. I have changed spark plugs and the wire, new carburetor, new gas take and fuel pump, new thermostat, temp sensor, water pump, new throttle linkage, new vacuum line, new distributor cap and rotor, new harmonic balancer. I have tested compression and the lowest was 115 And the highest was 120. I have set the timing to 6 degrees and it still has the vibration issue. I have probably done more but that’s all I can think of at this point. Any ideas or a list of things I can check... I love these cars but I’m at a loss on this one.