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5.3 cam swap
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Posted: 09/17/09
08:33 PM
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I was wondering how hot of a cam I could run and still be able to pass the Cali sniffer test? I've been putting some $$$ away for a little project of a set of heads, cam, intake, ignition, and computer upgrade but I can't decide exactly what I should get because I have to run a truck that has to pass smog 
Any help guys would be most appreciated. Thanks.
2001 Chevy Silverado Z71 w/5.3
Mods: K&N cai, Flowmaster NasTruck exhaust, under drive pulleys.
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Posted: 09/18/09
12:33 PM
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stupid smog police.
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mpayne
Administrator
| Posts: 1142
| Joined: 10/07
Posted: 09/21/09
04:23 PM
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Agreed Nova.
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Posted: 09/27/09
09:32 PM
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I would think any aftermarket cam with similar duration and lobe seperation than the stock cam will have more lift and still pass testing. You can also upgrade to a 1.8 ratio rocker.
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Posted: 09/28/09
07:39 AM
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make sure the cam you are using is CARB approved, caontact the cam manufacturer of your chaice and they will be able to answer that question for you.
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Posted: 09/30/09
07:38 PM
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Thanks Guys, I'll post the cam numbers as soon as I get them.
2001 Chevy Silverado Z71 w/5.3
Mods: K&N cai, Flowmaster NasTruck exhaust, under drive pulleys.
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