Thread: How to modify your Holley Power Valve Circuit
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Old 12-16-2009, 09:27 PM
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zrayr zrayr is offline
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Quote:
Originally Posted by Tom Kirkham View Post
I believe you will need to counter sink for the head to clear the PV. Besides they are expensive...
I know that ! I have a set of them & am trying to think of "other" uses for them.

Z. Ray
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