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We have had the same problems with our 85 Midas with a 454. The Heave Duty Boots (orange not black) will help, I also use an insulation sock (available at local auto parts house, used on race cars), I have added a thick layer of insulation putty used on wood stoves (good to 9000 degrees), under the heat sock. The putty is very brittle, but so far has worked. We have had success for about 300 summer heat miles. Next I will add a duct from behind the front wheels to bring in cool fresh air. Be sure that there is nothing blocking air flow to your radiator (including a home made bug screen with small holes). Good luck to all of us! Oh by the way, you can get ceramic plug wires for about $100, I haven't tried them as yet. Pete |