To be sure you have it wired correctly, you will have to describe to me how you have it wired. Don't look at instructions to tell me, look at how YOU have it wired. Exactly, specifically. Follow each wire and give it's color. The PCE376.1218, if that is what you have, is for your motor. You have the correct distributor.
1. After reading your first post, I would say you have it wired wrong. You are blowing it up. If I am reading your words correctly.
2. You say you don't know anything about what you are doing, but you know it's the magnetic pickup that is failing. Are you guessing or what?
3. Can you please re-confirm and link to whatever instructions you are using to wire it.
4. Are you using the "distributor harness" that comes with the distributor and plugs into the distributor?
5. I am ready when you are, to fix this problem ASAP.