240whp means around 280-290 at the crank, or over 140hp/ltr! If race engines sure but street K20 can really reach that high meh or just exaggerated dyno numbers?Can la.
A lot of NA work needed but it's possible with a 2.0 base. Look at the infamous K20.
Some more this is Mitsubishi 4B11, not known for high rev NA power like K20.