when to upgrade fuel rails
#6
FormerVendor
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They start to become a restriction above 600rwhp under that is to add a front mounted regulator and a return line or just for looks. A set of polished rails on the intake do look pretty good.
Nate
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#10
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Join Date: May 2006
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i got mine to make it an easy step to tap for fuel when i hook up my nitrous, if i do even hook it up... + my stockers didnt seem to want to work at all with the fast 90,aftermarket rails were cake after i got them lined up. then theres also the looks of it.