[Rustys14]

The problem that you run into with building a high hp NA KA is that the motor has a very long stroke. High hp NA motors need to to be able to spin at high rpm which is something that the long stroked KA is not very good at. The mods that you have listed are realistically only good for around 150whp (likely less). You may be able to eek out more if you went with ITBs and very aggressive cams but you will be losing daily driveability at that point.

I built a very similar to motor to what you have planned awhile ago (SOHC pistons, 248 cam swap, flywheel, exhaust, etc) and while it was a fun motor, it was nothing spectacular. I never had it on the dyno but I can assure you that it made far less then 200hp. I also had all of the parts laying around so it cost me almost nothing to build. I would NEVER spend any sort of real money on a NA KA build.