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Adjustable fuel pressure regulator

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Old Jan 18, 2013 | 01:52 AM
  #1  
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Adjustable fuel pressure regulator

Is Holley still the best AFPR ?
I need something complete, with the diagham, gaskets, etc, etc.
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Old Jan 18, 2013 | 01:59 AM
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Re: Adjustable fuel pressure regulator

Don't know about the best but the Holley unit is by far the easiest to adjust when installed
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Old Jan 18, 2013 | 09:41 AM
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Re: Adjustable fuel pressure regulator

Holley is the easiest one to use. No trying to get a small open end wrench under the plenum to turn the adjusting bolt. Not to mention the clearance issues because of the adjusting bolt on top of the regulators. Just turn the dial by hand on the Holley.
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Old Jan 24, 2013 | 09:01 AM
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Re: Adjustable fuel pressure regulator

One word of caution on the Holley ones. Don't know if the issue has been resolved recently, but the Holley regulators have been known in the past for the diaphragm rupturing really easily. It's a shame too because, as said above, the **** makes them really easy to adjust. The housing on them is really nice too. I have a Holley one, but I chickened out on using it due to the above issue of the diaphragm rupturing prematurely. I ended up using the Crane unit on mine, and even though it uses the bolt instead of a ****, I still have enough clearance to adjust it even with the Super Ram intake. I'd suggest either the Crane unit, or the BBK one. Btw, the Crane one requires re-using your stock diaphragm. I think the BBK units come with a new diaphragm. Of course it's not too expensive to buy a new replacement diaphragm from any parts store.
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Old Jan 24, 2013 | 09:19 AM
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Re: Adjustable fuel pressure regulator

Then would it be best to buy the Holley regulator and a diaphragm from somewhere else ?? Anyone have a link to a diaphragm?
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Old Jan 24, 2013 | 09:27 AM
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Re: Adjustable fuel pressure regulator

Not sure if the Holley uses the same type of diaphragm as stock ones. I'd have to go take my Holley one apart and see if it's the same.
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Old Jan 24, 2013 | 09:37 AM
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Re: Adjustable fuel pressure regulator

Never had a problem with the holley
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Old Jan 24, 2013 | 11:13 AM
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Re: Adjustable fuel pressure regulator

Originally Posted by Pat Hall
One word of caution on the Holley ones. Don't know if the issue has been resolved recently, but the Holley regulators have been known in the past for the diaphragm rupturing really easily. It's a shame too because, as said above, the **** makes them really easy to adjust. The housing on them is really nice too. I have a Holley one, but I chickened out on using it due to the above issue of the diaphragm rupturing prematurely. I ended up using the Crane unit on mine, and even though it uses the bolt instead of a ****, I still have enough clearance to adjust it even with the Super Ram intake. I'd suggest either the Crane unit, or the BBK one. Btw, the Crane one requires re-using your stock diaphragm. I think the BBK units come with a new diaphragm. Of course it's not too expensive to buy a new replacement diaphragm from any parts store.
I agree with Pat, I bought a Holley AFPR, intalled it and the motor sat for a few months before firing up. Once I fired the motor up, I checked the vacuum line to the regulator, it was full of gas. The diaphragm ruptured. Shame, I did like the ease of adjustment.
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