To be honest.... I just don't think a RELIABLE 200 hp is feasable out of a n/a A series engine running on premium pump fuel, I've done everthing converted has prescribed (except I'm running 40mm throttle bodies) and I've just recently had the car dyno'd and I did not reach the 200hp mark....came close!
Have spoken to Jeff Taylor about my results and he says my engine and Johns are very similar in performance figures, His is set up for circuit and mine is set up for rally.
If I was to run a higher comp. ratio and ELF I think I would come pretty close.