If you're NA I think you'll really fuck the car up and ruin every bit of fun by forging the entire motor.. but its your choice.

If I did my cobra NA I'd port the shit out of the heads, cams, intake manifold, hardened pistons not hypers, hardened rods, 9lb flywheel and a GT crank because its not forged like mine. The motor would rev so damn fast it'd feel like a 6cyl roadster and be fun as shit to drive.

Forged NA..bleh. Tune it right and detonation wont happen.

Make sure all the rods, bearings, etc are upgrade. Federal mogul/arp