Not Ranked
I had big cam issues with my QF 780 vs. I called them a few times, 4 years ago, at no time did they mention a secondary adjustment. I can't remember, if it was QF or someone else, that told me to drill the throttle plates. SLightly better, but nowhere near enough.
I was advised to go EFI and it worked. However, the tuning instructions were non existent and the first go around, I wasn't instructed about secondary adjustment for IAC steps.
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