Better Torque From A 318

id love to see 450 at the flywheel,..any thing above 420 ill still be tickled! in a 2700 lb duster, that be nuff fun fer me!!
Here's a dyno of the 380 hp 5.9l crate actually making 409 hp add some cr and more cam might get there without porting add another 25-50 cfms to that should be no problem.

https://www.motortrend.com/how-to/mopp-0303-360-crate-engine-buildup/amp/

Mopar Performance 360 cid 380 hp rated
RPMTQHP
2500380.6181
3000402.9230
3500415.1277
4000437.8333
4100439.5343
4500437.1375
5000416.3396
5400398.6409
5500388.6407
6000343.9395