Dude, if I can successully build a couple motors then you can too. It seems like a good portion of the "pros" end up running on autopilot and overlooking lots of details when building motors for customers. I was told by several that my GN would not be capable of running 11's without 116 octane. I was told 11.80's at best with a good 60ft. I ran 11.60's with a 2.2 60ft on 91 octane and a little meth with only 18-19psi and conservative timing. I have another 50-70hp I can get out of it with more meth, more boost, and good tuning. I attribute how strong it runs to me taking the time to make an educated decision on ring gap, setting the valve preload identical on every singe valve instead of just ordering pushrods based on one measurement, hand porting my intake to match every port perfectly, etc. I'm sure you're building this motor because of how your last one was slapped together by a "professional".