Best way to convert to EFI is to get a complete OEM EFI system out of a donor like TPI. Aftermarket EFI is not the same quality as OEM in more modern cars like you are more used too. A good Qjet setup correctly will drive just as well as EFI anyway.
True, but OEM has many more hours and dollars of R&D put into it than aftermarket. OEM systems are also designed more specifically for certain engines while aftermarket EFI is generic one size fits all design. Its similar to OEM carbs vs aftermarket carbs.The GM stuff has its quirks too. And it's only going to be as good as the software supporting it.
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