No problem man. If you got the Drag III kit for so cheap, theres nothing wrong w/ it, alot of people would kill for one!
Spooling is what a turbo does when sucking in air. It can only begin creating power once its spooled up so much. For more info check out
www.howstuffworks.com.
Have fun w/ the kit, and post up how you like everything when you're done.