I was looking at your sig ... so nice to be able to see one these days ... thank you ... and noticed you be a Vert kinda guy.
I saw the b cam.
IIRC, that cam shifts the power band up a good bit.
Not what you want with a heavy car if the above is true.
The Cobra (unported) intake would be a good choice as it retains good low end tq.
Have you ever considered advancing the cam 4 degrees for a bit more zip down low?
If you are looking for the most gain for the buck ... a tb will not be all that noticable at this point in time due to how your combo is configured.
Grady