Small block 426 stroker with trickflow heads. How much HP.

Go over to Moparts and look up Dan Smith aka "Qwkmopardan" He has cars well into the 9's with less head and less cubes. How fast can you go with stock ported cast iron heads? 9.6's apparently and 9.59's with ported Edelbrocks.

318 for drag race use

He's obviously making more than 2 HP per cfm of airflow.