MPFI car to TBI
11-01-2005, 08:12 PM
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MPFI car to TBI
Am swapping a 88 305 TBI engine and trans into a 90 3.1 car. I believe the MPFI fuel pump puts out more pressure than I need for the TBI motor,is there a way to regulate this or do I need to swap pumps. I have the complete donor car,but figured I have enough work to do if I can avoid more. TIA. 
11-02-2005, 05:17 PM
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This is probly something many people have or will encounter over the years.
Make sure you start another thread or update this one to let us know how it turned out
Make sure you start another thread or update this one to let us know how it turned out
11-03-2005, 05:25 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
The multi port fuel pump will suffice. TBI systems are low pressure systems and a V6 pump should provide a stable regulated 15 psi at all engine loads with ease.
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