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Author Topic: APT ?  (Read 3010 times)

Offline Malibu72

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APT ?
« on: February 27, 2012, 06:25:03 AM »
Hi,
     I was adjusting my APT over the weekend to tune out a very very slight off-idle flat spot. After successfully completing that, I noticed that my carb seemed  to idle smoother than before. Could anyone explain why this is? Carb is a 17082227 with .036 idle tubes, .052 DCR, .076 main jet, 52 rods, idle screws about 7 turns out. 454 30 over 226/236 @.050 Crane cam. 10 to 1. Thanks.

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Offline Cliff Ruggles

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Re: APT ?
« Reply #1 on: February 28, 2012, 04:03:09 AM »
The idle tubes may have been seeing the area between the jets and metering rods as a slight restriction.  If you raised the metering rods it may have made more fuel available to the idle tubes......Cliff
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