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You can check the spark plug wires and make sure they aren't too old and cracking. Replace if questionable - especially if they are too stiff/hard. Back in the 70's, most of the cars on the market came with a condenser/capacitor from the alternator ground to the field connector. This was used to reduce noise. I'm sure it can be done if necessary. Also, run a ground wire from the tip of the exaust pipe to chassis ground - this can also help.

[QUOTE="Robb, post: 170586, member: 8446"] You can check the spark plug wires and make sure they aren't too old and cracking. Replace if questionable - especially if they are too stiff/hard. Back in the 70's, most of the cars on the market came with a condenser/capacitor from the alternator ground to the field connector. This was used to reduce noise. I'm sure it can be done if necessary. Also, run a ground wire from the tip of the exaust pipe to chassis ground - this can also help. [/QUOTE]

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