yes I kind of believe in this, thought it was the answer for awhile. And in the end you can make just about the same amount of power too. Really comes down to how much do you want to spend. What are your goals, how much trouble are you willing to put up with.
ka build after build always ran into some kind of problem. and if you what more that 7-10 psi have to rework the motor. so much to have to upgrade and change out when your turbo it.
from my research, if you want more that 250 and don't want to build an entire motor, sr the way to go.
if you going for more than say 450-500hp, doesnt matter which one cause your overhauling everything.
buddy here has blown up 2 ka-t, another ditched his long ago for sr and swares by it. got tired of arguing with them
plus common sense says go with the motor that was designed to be boosted from the get go. Every time you add Fi to an NA motor going to have problems.