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Old 08-18-2003, 08:07 PM
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I don't believe you have enough fuel pressure. 48 PSI will work for the old TBI system, but I believe the 96 vortec uses the MFI system that requires 63 psi. I did a similar swap with a 98 L31 into a 91 Sonoma, and had to replace the in-tank fuel pump. Once I got the higher pressure it fired just fine.

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