Re: older Holley intake manifold ?
The 300-2 is/was a good intake, but it seems the 300-25 almost always made as much or nearly as much peak HP, and the average HP was always better, as was peak torque and average torque.
I don't think there is such thing as an intake that works "out of the box" or "as is" for a Super Stock engine, at least not any where near as good as it could.
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Alan Roehrich
212A G/S
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