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75plyduster
PostPosted: Wed Jan 30, 2008 3:45 pm 
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EFI Slant 6
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Joined: Mon Jan 21, 2008 8:04 am
Posts: 315
Location: Spring, Texas
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Its a '75 Plymouth Duster with a 225. A 1974 carb and no upgrades besides new exhaust. What should I adjust the intake and exhaust valves to?

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Doc
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PostPosted: Wed Jan 30, 2008 3:54 pm 
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Location: Working in Silicon Valley, USA
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.010 on the intakes and .020 on the exhaust... HOT.
DD
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runvs_826
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PostPosted: Wed Jan 30, 2008 3:56 pm 
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Turbo Slant 6
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Joined: Mon Jul 17, 2006 12:30 pm
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Location: Nweberg, OR
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What about cam increases? If someone were to have 270 duration with .44 lift, I've always heard that you loosen it a little. Does anyone have any advice or numbers? Very much apprecaited.
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dakight
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PostPosted: Wed Jan 30, 2008 5:20 pm 
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Supercharged
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Location: Gilbert, Arizona
Car Model: 1962 Plymouth Valiant Signet
You would go with the cam grinder's recommendation. I believe they are typically a little looser.

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