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Keith, I don't know the answer to your question about plugs, but I do know that you're supposed to change that wire, all the way back to the fuse block. -----Original Message----- My 1971 Chevelle was converted to HEI a couple of years ago. The car runs good. I am still using the resistor wire that was connected to the old external coil. The car seems to run best using spark plugs that are two heat range higher than stock. I have always been told that colder plugs are better, but my car like hotter plugs. Is this because I am still run the HEI with the old resistor wire????? ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
