Thread: older Holley intake manifold ?
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Old 11-01-2014, 08:41 PM   #12
Glenn Hayes
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Default Re: older Holley intake manifold ?
Quote:
Originally Posted by Joe Abbazia View Post
About ten years ago I was on the dyno with my 327 stocker trying different things and wanted to see how bad the stock intake was. Everyone in the shop was amazed that the old 300-2 was worth 45 hp over the stock gm 397 corvette one.

Holy Cow !

Was that at one spot or all over?
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