Well I can tell you that I paid $4,000 less than I would have had I gone the built bottom end route.
I was on 11lbs. But again it wasn't the power that did it. It was fuel.
A contributing factor was the fact that I added a boost controller after I had been tuned. IT was a spring style MBC. It held boost a bit more up top which is why I think I must have leaned out some. This combined with the higher HP I was making around 7,700 rpms, is what caused it.
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