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    New to GM Tuning - 4.3 to 5.7 swap???

    Hello, I did a 5.7 swap in an '03 Sonoma 4x4. I installed an '02 5.7 with an 0411 ECM. I have a small stumble around 2000-2500rpm. I have used older Holly and Accel EFI systems. How would I watch the...
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    Views
    2,497

    New to GM Tuning - 4.3 to 5.7 swap???

    Hello, I did a 5.7 swap in an '03 Sonoma 4x4. I installed an '02 5.7 with an 0411 ECM. I have a small stumble around 2000-2500rpm. I have used older Holly and Accel EFI systems. How would I watch the...
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