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I was just wondering if I would get any increases in power and the difference in mpg if I were to swap 5.7 inj. for 6.1 inj.? Im running a ram air intake so im sure my air/fuel ratio is off. Please help me out! Thanks!
 

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actually your engine should adjust the fuel/air mix by itself after a couple hundred miles of learning the new setup
 

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Had 392.. Now.. LS2 GTO!!
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your set up is fine. if you go above 370rwhp about more than 100% duty cycle then you need them. looking at your mods you have alot of stuff to get there
 

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C HEMI GO
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Are the 2003 injectors worse than the 2004-up ones? Would a 2003 have more to gain from the swap?
 
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