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305 TPI cams, and emissions.

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Old Feb 15, 2001 | 09:22 PM
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3.1 firebird's Avatar
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From: st.louis
305 TPI cams, and emissions.

I might get a 90 305 TPI with the weaker cam, I was thinking about getting the better cam and swapping it in. My question is.......are the emissions standards for each cam different then the other?
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Old Feb 15, 2001 | 09:42 PM
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3.1,

You can install a non-emissions-legal camshaft in any engine you want. Where you drive it is entirely up to you, but it won't be legal to drive on the street.

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Old Feb 15, 2001 | 10:06 PM
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no, but if it's a 90 305 TPI, chances are overwhelmingly good that it has the better cam already. The 'peanut cam' stuff is just a myth when it comes to the 90-92 cars.

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Old Feb 15, 2001 | 10:22 PM
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From: st.louis
I was reading on the tech section where if the 305 TPI has a tach that redlines at 5K its the peanut cam, if t reds at 5500 its the good cam.
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Old Feb 15, 2001 | 10:49 PM
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it's wrong. it needs to be updated.
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Old Feb 15, 2001 | 11:00 PM
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
No, the emissions are the same. And there are hundreds of cams out there that will pass emissions, even tho they arent labeled as being smog-legal. Who knows but you what kinda cam is in your car, as long as it passes clean out the tailpipe.

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