I will post the flow figures - both before and after port reshaping.
Increasing port flow has a dramatic effect especially for a pressurized
application. Sure one can just increase the boost level, but this results in high
ACT's and higher octane fuel required. One can always reduce ignition timing at high boost,
but this just reduces power, and increases exhaust temperatures to dangerous levels.
The sure way to a powerful efficient engine is head flow. Great flowing cylinder heads
make for high output - even at lower boost pressures.
20 lbs boost to make 200 HP is evidence of a very poor flowing cylinder head.