Sean can correct me if I'm incorrect, but I believe he said he tuned the Morley's Muscle kit for best results at midrange rpm's and less at high rpm's/redline (but more-than stock), because who on a VMax stays there for long? That sounds like a good reason. Probably 95% of riders are midrange or below, most of the time. Believe me, I spend some time each time I fire 'er-up, watching Ruby Red-Eye wink at me, which is at 8K+ rpm's.
If you look at threads about the Morley's Muscle jet kit, using the 'search' or 'advanced search' upper-right hand side of the page, you will see plenty of corroboration about why Sean's product is a good choice.
I believe Sean's system retains use of VBoost. I,like CaptainKyle, have a Dynojet Stage 7 setup, which has directions to eliminate the VBoost butterflies, which makes it more-difficult to use traditional bourdon tube gauges or liquid synchronization tubes to synch your carburetors. Kyle and I both retain the VBoost, despite being DJ Stage 7. Sean's system gets praise from those who have it, and I expect that following his directions, you will join that cohort.
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