1966 425 HP air cleaner to hood clearance - NCRS Discussion Boards

1966 425 HP air cleaner to hood clearance

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  • Joe T.
    Expired
    • February 25, 2018
    • 153

    1966 425 HP air cleaner to hood clearance

    After several measurements using play-doh, at the top of the cover in four locations, the least distance is 3/8 inch in the center. I understand that 3/8 is typical for a stock 66 427 425 HP clearance. I am considering a 1/4 inch heat insulator gasket. That would then only allow 1/8 inch to hood clearance. I have tried a 2 1/2 inch air cleaner. With it, the top of the cover rest on the top of the carburetor which would create other problems. I do not want to make any modifications to the intake. Does anyone know of a 1/8 inch heat insulator gasket for my Holly 3247 carburetor or any other suggestions?
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