Description:
Both the Beru ignition wire connectors at the distributor cap and the spark plug are top quality and hardly ever need replacing in comparison to the actual ignition wire that Beru uses. The insulation on the original Beru ignition wires tend to crack in the vicinity of the mufflers (maybe elsewhere as well if they are that old) due to high heat.
The solution? Buy a complete OEM Beru ignition wire harness set with caps (expensive), or upgrade to a set of replacement Beru Silicone Copper ignition wires and reuse your caps for a small fraction of the cost.