Until then I have a question. Is your pro motor from xyz company the exact same hard parts and machine work as the same companies version that won the Runoffs, Sprints, NASA etc?
The answer is a resounding NO!
The question is why, right? Simple, until you pass through the light to the other side, the light being a full technical tear down at the Runoffs, you are not aware of what actually you can get through. Those that have been there know what can be done to the motor over and above the cookie cutter version you have. Presto, your pro motor is not the same as a select few others who have more experience than you.
Want to test this theory? Just offer to buy any Runoffs winner's motor, tech shed to your trailer, paying the retail price his/her motor builder quotes. Go ahead and offer to replace their intake to tail pipe with new Mazda parts while you are at it, you will want those parts as well. When you get no takers or when they want 25k for the motor, ponder why.
I will blog about this and hopefully help the rest catch the few albeit there is still no hope for you 1.6 types.