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I have a set of 720cc injectors and was wondering if it would be too much of an overkill for the stock twins if i just dropped them in. I have an afc to lean the ratio.
Currently, i'm running pretty lean at bpu level, on 430cc injectors.
 

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Would it be overkill for a stock turbo system?
Yes.
Would you be able to control it, and set your fuel deliver setup to control it?
Yes.
Would (6) 720cc injectors surpass your stock fuel pump's delivery?
Yes.

Your stock fuel pump, can only supply enough fuel for approximately 660 cc injectors (6).
You could do it, but you won't be able to go anywhere near maximum delivery on them, with stock fuel pump. Unless you plan on upgrading your turbos, and entire fuel system, go ahead and do it.. if not, it's not needed... 550-660cc injectors is going to be plenty.
 
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