I bought this old 76 Chev 350 truck and it started and ran good. It had been set up for electric trailer brakes and had some sort of wiring block with 2 copper coils on the firewall. I thought it was all "non functional" so I removed it. Well now, I don't have spark and truck won't start. The distributor is the type with the coil in the cap. I don't see that any wires are going from outside the distributor into it. Can anyone send or post a picture that will help me rewire the distributor? It would be appreciated.