cast iron heads vs aluminum for stroked 340

Yeah I caught the cage.
But no tubs in early As means skinny tires, and he mentioned doing T-bars and such, and no mention of shocks or brakes, so to me thats nuts.Zero to 100 in the blink of an eye, and no way to stop or turn. Hmmm? Much to easy too get into trouble.
I know I wouldn't build that way.
For me, the car has gotta stop and turn first.
Maybe thats just me?