Hey thanks for the quick responce!
I am guessing most people who are putting them on are doing it by feel. The only concern I have with doing that is that if I don't torque it enough, it won't put enough compression on the metal gasket and I might get some tiny leaks. Then again I guess as long as I tighten it up evenly it should seal up nicely anyway.
A friend of mine downloaded an in-depth service manual for the Fit, I might stop by there before I install my headers and browse through it to see if I can find the reccomended torque specs. If I do I will post them up.