If I am not mistaken he was trying to push a high mile stock long block to see what it's limit was and how fast it would go... He was running 35 psi boost on that pass, and the car dynoed some big numbers on a bone stock very high mile: head/cam/bottom end with just bolt ons... I believe HP was up around 440 RWHP.

The come stock forged.

Ouch, if you're gonna run alot of boost you better forge that bottom end.