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Old 01-03-2007, 11:46 AM   #1
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holley adjustable fuel pressure regulator

I was having problems tuning my 89 GT setup. It was not performing close to what it should. The problem was the holley adjustable fuel pressure regulator broke and was leaking fuel through the set screw into the vacuum lines. After replacing it with a new regulator it is definately a 12 second car. A G-tech run produced a 105 mile per hour trap speed. Has anyone else had trouble like this with brand new holley parts?
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Old 01-04-2007, 11:10 AM   #2
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Re: holley adjustable fuel pressure regulator

I didn't have that exact problem or with a holley. But i had a BBK adjustable regulator and the o-rings would not seal into the fuel rail and it leaked gas all over the place. That definately sounds like a defect with that particular piece though, not a common occurance.
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Old 01-05-2007, 08:13 AM   #3
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Re: holley adjustable fuel pressure regulator

That stinks. Lucky it didn't catch fire.
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Old 01-05-2007, 08:27 AM   #4
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Re: holley adjustable fuel pressure regulator

My holley did the same thing..
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Old 01-05-2007, 07:25 PM   #5
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Re: holley adjustable fuel pressure regulator

I've got a Kirban and have never had any problems with it.
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Old 01-07-2007, 06:38 PM   #6
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Re: holley adjustable fuel pressure regulator

mallory here, quality piece
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Old 01-13-2007, 02:51 PM   #7
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Re: holley adjustable fuel pressure regulator

Quote:
Originally Posted by silverstangboy View Post
mallory here, quality piece
i had a holley but it didnt have a vacuum port.....worked fine but couldn,t trim the fuel back enough at idle without starve'n the top end.....i went to a mallory w/vacuum port and it is very reliable!!!
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