Butler sells a cut version of the Victor. The shave it down to fit shaker hoods. I believe there is a thread on that here. Steve C did a test and lost 19 HP over an uncut version but it did out perform the RPM he was running I believe.
I know the RPM was choking my 310 K Heads. Port matched but not fully ported.
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68 Firebird
Are you running with the wind or breaking it?
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