I need help finding tdc

Ah slantie. I will upgrade my comment to "replace" the distributor drive gear while your at it. I had seen my fair share of those shred themselves. Had a pin shear once and you could not tell by looking at it. The gear was tight on the shaft too. I retimed and it would slip as soon as it started.
As far as TDC, the procedure is the same on anything. Make sure your on the compression stroke then rotate to line up the damper mark to 0.