In high school I built a little hot rod 20/22 with a stroker kit making it a 2.7l displacement. I never put it on a dyno but it was somewhere in the range of 200hp if I had to put a number on it. It was carbed and mainly a street use but I did hunt out of it. That being said I know that feeling of making a turd fast.
While I admire the thought and willingness to experiment I have a few questions.
You are wanting to go efi, why not do a more modern engine?
You are thinking of possible forced induction
You want big hp in a small package.
All of those things scream 2/3rz. A turbo or sc 3rz is easily capable of 300hp on stock internals. It has obd2 so trouble shooting and monitoring are a breeze. They are darn near everywhere now for a fair price.
Just some food for thought. I admire the old 22r tractor motor but its modern brother is much more powerful.
