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Old 06-15-2011, 05:28 PM
My442 My442 is offline
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Join Date: Oct 2009
Posts: 595
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I chased this on a 455 car, and found that the mechanical advance springs were weak, and they allowed too much advance.

Also, it takes an aftermarket aluminum radiator to bring down the running temps to the 185-190 range.

I have never had a factory radiator do that, even recored.

 


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