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Discussion Starter · #1 ·
My BPU+++ runs mint, pulls great starts great, everything is great (AEM equ.)

I took my map and plugged it into my friends car. He has a small single, but essentially stock fuel, stock TB, stock everything else.

Just to get it to idle I had to add 40% fuel, then I had to add over 60% midrange just to keep it stoich. You cannot boost it over 5 psi because it maxes the 550's out. His car was N/A, now it's a complete swapped T/T. There is one Walbro 255 in the tank now. Something to do with the N/A fuel lines?

Fuel pressure? (Stock T/T rail, stock T/T FPR, but one Walbro 255)

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