Well if you want to do an apples to apples comparison a stock 5.7 in a new charger will lay down around 285-300 at the tires upgrading to just a nice set of ported heads and a well designed cam can turn that to close to 400 hp N/A through a Nag1 5 speed with a tcm and torque management fighting you the whole time. USCG Jason had a head and cam Charger that ran deep into the 12's on heads and cam alone in a 4400 lb car. Now the gains with a Stroker on stock heads will be minimal at best. Expect a bump in hp about 35-40 hp to the wheels but expect almost 80-90 ftlbs of Torque Now you pair that up with a High flowing head and a good cam some dyno tuning or a wide band with street tuning and say a 90mm throttle body through a 5/6 speed manual trans you are looking 500-525 hp and probably in the neighborhood of 550-575 ftlbs of Torque.
