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Old 07-07-2004, 05:23 PM
tpiini tpiini is offline
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Default A/F ratio meter really worth a darn?

I'm just getting used to my new toy. It has a very stout 289 with a very lumpy idle. One of the P.O.'s had installed a Holley air/fuel ratio meter on the dash. You know, the kind with the lean/normal/rich lights.

Anyway, just by the exhaust smell I'm guessing that the car is running extremely rich at idle, but the meter shows it to be running lean. When I cruise it up, it'll switch to "normal" briefly, but mostly stays on the "lean" reading.

Anyone have any real experience with these things? I haven't been into the carburetor, so I'm not sure if it's been rejetted or not. Just looking for opinions on the worth of the meters themselves at this point.

Oh, and the O2 sensor is mounted at the collector on the driver's sidepipe. Is there an optimal place to mount the sensor? Will it read differently if mounted in different places in the system?

Thanks, Tom
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