Cylinder head dyno shoot out

They dyno'ed the 5.9 and got 305/414 and then added the stroker kit and finished with the 339/498.


Yep! That’s the episode! Lived the two episodes. That was cool IMO.
My stock stroke 5.9 magnum 300 crate with a 212/218 comp cam and an rpm air gap made 26 more than their stroker. No where near 498lb/ft though. Mine made 423lb/ft.
View attachment 1716338909

What size header?!?!
And exhaust?