Without a doubt, your going to want to run sct when using a power adder. For the price and the exceptional outcome, it's worth it. Currently, marty fletcher is gaining 20hp per lb of boost. Today he is running 466rw 470tq------13 psi on a bone stock 360 motor.
If your going to run a rear mount turbo set up, which can be bought for $2600 with all tuning and injectors, an intercooler isn't a necessity nor is meth injection, as the length of pipe and the air on the pipe will help cool the charge, this isn't to say you CAN"T go wrong with adding an intercooler or meth injection.
For a s/c motor, your going to want an intercooler or meth inection for anything over 6-7lbs of boost unless you live in alaska. The intake air charge will raise +10 degrees per lb of boost on top of the outside air. If you are hitting 12 psi, and it's 80 degrees outside, your intake air temp is reading 200 degrees or plus, which will cut your performance in half.
Blown is using meth injection, which you can control via a dial in the truck, to control how much or how little of the application is being applied. This also helps eliminate detonation, which is a big problem when your forced induction.
I am going the sts route, and am going to monitor my intake air temps first and then I will either add an intercooler or meth injection, it will most likely be meth.
A completly stock 360 motor making 460rwhp for $2600 bucks.
Lets get some forced induction activity in this forum, and bring this forum to life.