spray can be nice, one day u gonna hear it ticking and its gonna shoot a hole thru the block, go all motor, no spray. theres a bit difference in wanting a build motor for track and daily driven, ur gonna want both, but you're gonna end up with one or the other, its not like u can keep the nos connected in the car while driving it daily, thats crazy. and u just asking for trouble, its better off building a NA motor for reliability, and getting a shell and build it to track. but never all in one, thats why people end up having their cars stolen, or broken down on the side of the road