The B cam is a pretty good choice for a mild combo like you have, but I think you need something with a little more low end "umph" as the B cam actually makes alot of power up top.
I reccomend you get ahold of Ed Curtis at flowtech induction, and check out his website
http://www.flowtechinduction.com/
he can custom grind you a cam that will fit exactly your heads/intake/tranny choice.
good luck with your decision,
-Drew