What I have here is a 76 T-bird and what it looks like is someone had advanced the timing (to 30 BTDC) to cover up another issue that I fixed. For this old stock engine that is way to high and would like to dial it back some. but the trouble is not figuring out the setting. It's getting the thing to move! it totally locked in place. I have had a lot of ford engines with tight distributors when the engine get hot but never locked up like this. Any suggestions that would help me loosen this thing up "WITHOUT DESTROYING" it. I need the car to drive to work it my winter ride. only 40 K on the clock.