The 1985 4.3L engines used a H.E.I. Distributor, built in coil on top, unless replaced with an aftermarket unit. The diagram should get you there, although on these units the plug wires only distribute the spark to the cylinders. No sparks whatsoever is a new problem. Let me know if you need further help.
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Thursday, May 9th, 2013 AT 1:58 AM