Like I said earlier, I grabbed some flow files that were of ported heads....but honestly, they weren't all that far off.
Desktop Dyno was around 4 hp off on my engine. That's pretty stinkin close. It's a very good tool for engine building if you have the correct information to put in it.
I'd say 400 or dangerously close to it is possible....
But of course I may be wrong. I usually am at least once a day.
