Thoughts and opinions for my 727

TT5.9mag said

That is absolutely untrue. Any tuner that doesn’t read plugs ain’t a tuner I don’t care if it’s efi, carb, or mfi. And you know that.

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I don't disagree. But who do you think has more experience reading plugs? An old carburetor guy turned EFI or a newbie who went EFI right off the bat?