W2 408 Dyno results today !

That sounds spot on ... it would explain the 6200 rpm peak and sudden drop in power after 6200 and rising bsfc .

It's your hobby and what you enjoy doing.... And you ain't gonna be happy with your number. Make a plan and goes version 2.0 on the Dyno. I came up short on a build once and worked more OT to fix the issues and make more pulls. I was glad to have done it and you would too. You've got a nice build....

JW