Re: spark plugs
I worked for a Cad an Olds dealer back in 57-61. Those engines came with AC plugs. Back them we tuned the engine ever 10'000 miles. Once in awhile we would get a car in with a skip, remove the plugs and someone installed Champion plugs, we would install a set of AC and tell the owner these engine won't run on Cham plugs. I'm sure if we got the right heat range Cham plugs the engine would run fine. But no one want to bye a 1/2 doz set of plugs. Walt
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