Slightly strange head flow question.

RP,

When you review ported heads, it's more important for you to take the "averaged" flow numbers when you evaluate them. The reason:

You engine will not be performing at "only" .500 or .600 lift. Your engine must make significant power (and torque) "across" the powerband, and that's why averaging is more important.

You must factor in the converter "flash point" to ensure a good launch, and the numbers, post launch are critical to get you to your desired shift point and finish line RPM.

Again, IMHO, you should avoid using "peak" values as they do nothing to define your performance "curve". The best "averaged" numbers will result in the best "overall" performance. Remember, you need to make good torque (high port velocity) to launch the car, and enough horsepower to push you down the track for your class (or desired ET).

Once you've averaged your flow numbers, you be able to determine if the cam you're running will produce the results you desire. I hope this helps.

Southernman