carb spacer to tall

hi folks
i purchased a new edelbrock 2 inch off of e-bay then relized that it was to tall. has anyone ever milled down a spacer to there desired height? i would like to bring it down to 1 inch. i only paid 5 dollars for it so i can risk damaging it. this is a plastic 4 hole style for a holley 750 on a m-1 intake
thanks
terry
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