Cubic Inch Guys???????

Again...big power. The more you increase the capability of the engine (supporting components) to utilize the additional airflow, the more benefit that an added jump in displacement is going to be to you. I'm assuming you've got a better than stock intake on there as well? If not, get one. The stock intake would already be the "bottle neck" in your combination and trying to force even more air through it as the result of a displacement bump is going to make it even more so.

It’s tough to give you hard numbers just based on listing your selected parts, but it’s safe to say with no other changes, a bump in displacement, combined with a more suitable intake (again, assuming you haven't already got one) would be worth an honest 50-70rwhp and like amounts of torque over what you're making now. Not to mention your boost figures will drop in the process because of the added volume you have to work with.....which depending on your set up should also reduce unwanted charge temperatures some and increase efficiency.

Dodge really had it right back in the 70’s with the slogan “There’s no replacement, for displacement!”