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fpr shim
I have seen this a few times and was wondering what it ment?
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Fuel Pressure Regulator shim.....boost fuel pressure a few psi.
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should be a thread in the 7.3 preformance foroums
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I really liked this mod, it helped smooth out my truck at idle.
Last edited by STROKE_THIS_F-250; 10-24-2009 at 02:56 PM. Reason: spelling |
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where do i get one?
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you just take a bb froma bb gun and put it behind the spring in the fuel pressure regulator and that stiffens it up
OBS FPR Shim and Gauge Install |
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Yep its pretty simple.
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