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Do I need a different fuel pump for the FIRST Injection setup?

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Old Aug 1, 2008 | 03:12 PM
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Gunny Highway's Avatar
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Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
Do I need a different fuel pump for the FIRST Injection setup?

I currently have a 350 TBI, but I'm looking into the swap over to the FIRST Injection setup. Unfortunately since I no longer have a garage, I'll have to pay for labor for the install if I decide to go through with it. I have a Walbro 190 that I put in there about 4 years ago, so I'm unsure if that will do the trick or not. Could I just add an inline pump to help pull some more fuel?

And 2), what are the differences I'm going to have to take into account in regards to the fuel system/lines going from the TBI to the TPI?

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Old Aug 3, 2008 | 10:10 AM
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Gunny Highway's Avatar
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From: The nation's capital
Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
Re: Do I need a different fuel pump for the FIRST Injection setup?

Really? No one?
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Old Aug 5, 2008 | 12:01 PM
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Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: Do I need a different fuel pump for the FIRST Injection setup?

As long as that Walbro 190 is capable of putting out 50+ PSI, it'll work with the TPI injection. If its a 15 PSI TBI pump, you'll need to change it.

The fuel lines are the same. You'll be fine there.
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