The loctite guy on advrider.com says:
"For an exhaust manifold stud, the new ultra-high temp high strength threadlocker should be used to fix the stud to the head, and a ultra-high temp medium strength threadlocker should be used on the nut used to fix the header to the head"
or
"Anti-Seize...
Use it in high heat applications (higher than 300 to 450F which is the upper operating limit on threadlockers) like the exhaust manifold studs and threads on a spark plug. Believe it or not, these are the only places I use A/S on a bike.
How much to use? Anti-seize the living crap out of that bolt. Well, not really. A visible coat is needed.
Anti-Seize is nothing more than grease and metal dust or some other high lubricity solid. With A/S the grease cooks off or evaporates and metal dust is left behind which gives you the added lubricity to remove pesky nuts and bolts."
The entire thread is located here and probably contains more, currently 21 pages worth, than you'd ever want to know about loctite and the like.
http://www.advrider.com/forums/showthre ... ht=loctite