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Discussion Starter · #1 · (Edited)
when running a ffim with a q45 throttle body is the idle air control required or will the motor constantly be surging or only till it warms up?

also on a stock fuel rail should i run 2 fuel lines in and 1 out to make any kind of power or would 1 in and 1 out be fine because i know once it fills the rail and holds pressure i figure 2 lines would be pointless? car is set up to make about 600 hp
 

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Me personally, I would upgrade the fuel lines from the tank to the car especially if you are planning on going with bigger injectors in the future. dual feed fuel rail is a nice option but not really needed. I am running an SX performance fuel pump on my car with -8 fuel feed to my rail.
 

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Discussion Starter · #5 · (Edited)
yeah i decided im going to do the 2 8an lines to the fuel rail and eventually do 1/2 inch line all the way to the tank with 2 255 fuel pumps...

always better to over do than to under do i guess.. i know ill never need that much but ill have it if i do, and i can tune the fuel down with the map ecu to how ever much i need.. i might do 3/8 instead of the 1/2 cause im only wanting about 600hp much more and its not really street able
 
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