The MOPAR power myth?

Right on. Use to have to run a crowd of Camaros at every race . Everybody and their brother had one !! And 90% of them dumped gas on the starting line when they left !! bastages !

I talked to Curt Johnson a little, one time at a race in k.c., he said the rat heads were flowing well over 500 cfm back then--"years ago", look how much faster they are now !
Aftermarket stuff.
No factory iron 454 head flows 500 cfm, even it did it would be a turd.