Mallory 4309 fuel pressure regulator

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Old May 4, 2008 | 10:54 AM
  #1  
Thomas Aquinas's Avatar
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Car: 1986 Iroc
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Mallory 4309 fuel pressure regulator

Used it for less than 500 miles, works fine.

$50

Thanks

-Brent
Attached Thumbnails Mallory 4309 fuel pressure regulator-fpr-4309.jpg   Mallory 4309 fuel pressure regulator-fpr-2.jpg  
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Old May 4, 2008 | 01:24 PM
  #2  
Cam-aro's Avatar
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Re: Mallory 4309 fuel pressure regulator

This is one thing that I'm completely clueless about but wanting to own. Are these universal or made for a certain setup or what?
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Old May 4, 2008 | 04:55 PM
  #3  
Thomas Aquinas's Avatar
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Car: 1986 Iroc
Engine: Afr 408
Transmission: T56 Magnum
Axle/Gears: Moser 9" 3.70s
Re: Mallory 4309 fuel pressure regulator

They are universal. It has 4 ports for whatever input and output you want to route. I used 2 inline, then just capped the other two. On the bottom is the return. All the ports and return are 3/8" NPT. On the top is where you adjust the pressure. They are pretty much meant for carb applications, I think they regulate fuel in 5-12 psi range.
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Old May 4, 2008 | 07:01 PM
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Car: 1982 Z28
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Re: Mallory 4309 fuel pressure regulator

Damn, this pisses me off! Every time I buy something on ebay I find it two days later on here for cheaper.

I have been looking on here for the last 2 months and just went ebay since my motor is just about together.

Sorry for butting in and good luck it shouldn't take long to sell.
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Old May 4, 2008 | 10:14 PM
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Re: Mallory 4309 fuel pressure regulator

Hey Cam-aro, this is THE regulator everyone uses when converting a TPI car to carb. It allows you to dial down the high pressure from the TPI fuel pump to where you can run a carb without having to change anything with the fuel pump setup. Most regulators just deadhead, and don't have a return port. You have to have a return, or it puts too much strain on the in-tank pump.
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Old May 4, 2008 | 10:39 PM
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Axle/Gears: Moser 12-Bolt(4:30 w/spool)
Re: Mallory 4309 fuel pressure regulator

Originally Posted by Pat Hall
Hey Cam-aro, this is THE regulator everyone uses when converting a TPI car to carb. It allows you to dial down the high pressure from the TPI fuel pump to where you can run a carb without having to change anything with the fuel pump setup. Most regulators just deadhead, and don't have a return port. You have to have a return, or it puts too much strain on the in-tank pump.
Sorry to hi-jack thread, but I'm going to PM you about this.
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Old May 8, 2008 | 02:39 PM
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Axle/Gears: Moser 9" 3.70s
Re: Mallory 4309 fuel pressure regulator

ttt
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Old May 19, 2008 | 08:59 AM
  #8  
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Axle/Gears: Moser 9" 3.70s
Re: Mallory 4309 fuel pressure regulator

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