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Reply to "Holley 700 0-4778-2"

It worked great but I only got 8mpg on a cruise!

Oddly some of the butterflies have small holes(bit less than a 1mm) drilled in them, two in each if I have remember correctly. I think this is something to do use on motors with very low vacuum at idle (I could be completly wrong here).

Would they ever have been supplied new with holes in the butterflies?
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