Thread: Factory efi
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Old 03-29-2020, 03:08 PM   #7
Ed Wright
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Default Re: Factory efi
Quote:
Originally Posted by GUMP View Post
Holley EFI!!
I have tuned several with both FAST XFI & Holley. I would certainly disagree. I can & do make the FAST system do things the Holley can not. Besides the Holley ECU failures I have seen.
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