Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

fuel pump question

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Old Apr 25, 2002 | 09:15 PM
  #1  
trans_am_racing's Avatar
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From: northern il
Car: 2000 firehawk
Engine: ls1
Transmission: 6 speed
Axle/Gears: 3.42 auburn
fuel pump question

last week i swapped my motor and trans out of my 87 ta , it was 305 cc q-jet, the car that i put it into was an 89 v-6 mfpi, i hooked everything up and went to crank on it and it started to gush gas out of the top of my car so i un-hooked the fuel pump in the tank and she runs fine for the most part but now my fuel gauge dosent work, if i hook the pink wire that controls the gauge it works, but with having the one wire, will it run the pump in the tank at all......?

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Old Apr 25, 2002 | 09:18 PM
  #2  
Jester's Avatar
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From: Homestead, Fla
You can't run a carbed motor on a MPFI fuelpump. You'll need to either change the pump, or put on a 3 port bypass-style regulator.
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Old Apr 26, 2002 | 04:12 PM
  #3  
trans_am_racing's Avatar
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Joined: Mar 2002
Posts: 203
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From: northern il
Car: 2000 firehawk
Engine: ls1
Transmission: 6 speed
Axle/Gears: 3.42 auburn
3 port by pass

where would i be able to get a 3 port by pass at and how much do they usually go for?
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Old Apr 26, 2002 | 06:44 PM
  #4  
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From: Homestead, Fla
You can get one from Summit or Jegs, and they run about $80.
Better off replacing the pump.
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Old Apr 27, 2002 | 01:08 AM
  #5  
2ponchos's Avatar
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From: michigan
TA_racing u can get the regulator its a mallory part #4309 its 74 dollars out of summit or jegs hope this helps
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