Which SBM for the Mopar vehicle

A /6 is more than capable of powering a daily driver, questions is if you want more power it's up to you to decide how much more. Pick a car that has the performance your looking for and it's 0-60 1/8 1/4 ability and figure how much power your car needs to do similar and at what rpm will tell you around how much cid you'll at least need.

A very mild street engine with decent performance be like 0.7-0.8 hp per cid.