I just got my new (rebuilt) 306 going and i hear a squeaking noise which sounds like it is right under the intake. I took off the drive belt, valve covers and ran the motor, squeak is still there. pushing in the clutch does not help either. If I stand directly over the front of car i hear the squeak, kinda in the lifter valley. I cannot pin point this noise. I am wondering if possible that the push rods are rubbing the guide plates?? maybe i should back the throw out bearing all the way off the clutch?? Any input appreicated.. Thanks!!