'Match Race' ~ 1968 'Road Runner 383' vs. 1971 'Cuda 383'

Could the 1971 383/300 HP Engine {w/Code 'N96' Fresh Air System} run ?

Yes,

See Dave Boertman in 1971.

He ran a 1971 Charger 383/300 HP {w/Code N96 'Fresh Air System'} that was classed in NHRA 'J/SA'.

The Charger {#3527 lbs. = Shipping Weight} was running 12.75's in March 1971 at
the NHRA Gatornationals, and won 'Stock Eliminator'.