The Mighty 396...NOT!

I was looking up something and came across this EFI build up of a 396 motor in an El Camino. Mind you this is a 396 big block Chevy with some basic speed bolt ons:

"... '70 Chevy El Camino SS 396 with cowl-induction. ... aftermarket manifold, an Edelbrock 650-cfm carburetor, a Crower street cam with 276-degrees duration and .518-inch lift, plus headers..."

Ok so far so Generic chevy big block. So they take a baseline dyno pull and come up with a whopping PEAK HP of 211@4700 RPM. Damn, that is some WEAK sauce! And they managed to squeeze 238 HP out of it with 314 ft/lbs torque topping the chart. That's less than a stock pre 70 318! Chevy Rat power!