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Crane AFPR hitting plenum!?! help

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Old 06-01-2005, 01:37 PM
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Crane AFPR hitting plenum!?! help

I just got done with the 305 TBI -> 350 TPI swap and I think it is running rich because it bogs when accelerating from a stop and it smells rich. I think is caused by my crane AFPR that is tighten down quite a bit to get the plenum on. I'll try it get a pic on here. I had to tighten it down about half way to get the plenum on. I was wondering if anyone else a problem like this?
Old 06-01-2005, 03:48 PM
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Yeah,

everyone with a cran AFPR :-)

Either find a shorter bolt that fits, or cut the one it came with down.

If cutting it, run a nut up it first and try to cut it clean. then u can run the nut off and then use a die to clean up the threads.

later
Jeremy
Old 06-01-2005, 04:51 PM
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Car: 1988 Camaro IROC-Z
Engine: 350 TPI (L98)
Transmission: T56
Axle/Gears: 9-bolt 3.45
I found one at ACE hardware store that was perfect and kept the one from crane incase I needed to match another bolt to it later.

I don't know why crane makes the bolt that long.
Old 06-01-2005, 10:55 PM
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Car: 1991 Z28 Vert
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Most AFPR for TPI cars are long bolted. Grind it down or get a new bolt. Believe it is a .8 metric.
Old 06-02-2005, 06:11 PM
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I just cut mine shorter
Old 05-01-2007, 05:36 PM
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Re: Crane AFPR hitting plenum!?! help

how short do u go to? i dont wana make mine so short it wont make certain pressure adjustments know what i mean? so how long should the bolt be for it to still work but not hit the plenum?
----------
also what diaphram do u guys use? the stock one?

Last edited by Bobby_80s; 05-01-2007 at 05:37 PM. Reason: Automerged Doublepost
Old 05-02-2007, 08:05 PM
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Re: Crane AFPR hitting plenum!?! help

I did the same on my BBK one. I cut the bolt shorter.
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