6 Pack vs. 650 4BBL?

It will have a big difference on the "wow" factor when you open your hood.
If you mean performance wise, need the rest of the build, and what 650/intake you have now.
Thank you.

Yes performance wise. Mild cam, headers, .40 over 300HP. 3.55 gear etc. Auto trans.

Want the wow factor when I hit the peadal.

Thank you