$800 brand new and installed (+ the antifreeze of course) and you can piece together a good used one for about ~500 now and used head jobs tend to keep their value if sold used... and I didn have to drain any fluids or "tear the engine apart" other than lifting the SC off. Also, last I checked ICers help with KR too....
Not trying to argue which mod is better or worse Im just saying your making the IC out to be this horrible comparison to heads in almost every aspect when its not...
I dont know what guy your referring to but for the sake of argument, I know my stock heads/cam setup with an IC runs 12s as well...