AFR MOPAR 340 HEAD TEST!

a-bodyguy said
281 is bull piss nhra factors the 71 340 @320
Of course he worked the heads for his daughter

There Is just a bit of difference between a 340 that Mopar put together, and one that a stock eliminator or super stock racer put together.
I'd be willing to bet the one Nick did weren't no stock eliminator version.