clock kits

Hey guys, just as the title says, how far can i over clock my Q6600 on these specs

ASUS P5Q-pro (mother board)

Zalman 9700LED (CPU FAN)

Q6600 (CPU)

4GB Kit(2x2G)DDR2 1066 Kingston (RAM)

i just want to over clock using air cooling

if you suggest anymore or better parts please tell me.

thanks guys !

You need an excellent heatsink, you can OC it as much as your motherboard can hold it. You will have to try every clcok speed until your OS stops crashing. You will have an overheating problem if you only use air cooling, i would suggest getting a sick heatsink like the V8, i have it on my quad exterme and i OCed it to 4.2, it runs cool at 43C on max load.