Re: EFI control units
I have had great luck with the FAST XFI.
Same spark advance, same air/fuel ratio makes the same power, unless one of the ECUs is extremely slow. FAST XFI is not slow. Equal processor speed, equal tuning, one brand ECU won't make more power than another. I have found no advantage to the Holley system. If that is what you are used to, you will like it better.
Been to the Holley school, still like the FAST better. COPOs I have worked with had the Holley, so I went to their school. Twice, actually.
Last Holley I worked with, a couple of COPO cars last summer, I still could not do something I do with my car's tuning, that makes my car quicker.
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Ed Wright 4156 SS/JA
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