what a great post. it reminds me of how i learned to drive a stick shift. my dad explained while drawing diagrams on paper of how it mechanically works. by understanding what is physically happening it makes the learning process much easier and faster. the way the author describes exactly how the carb works in detail has been by far the most helpful guide to proper tuning that i have ever read. i wish i found this post a year ago when i got my first nitro! It still runs strong but i'm sure it could be better. big thanks to ron paris and houston!