*Realistic expectations..C-mon jump in!

Realistic expectations....ok, I'll get to that in a second..... if you want to keep the gears, I guess I would lean toward this cam : http://www.summitracing.com/parts/CCA-20-811-9/
I like the Xtreme Energy lobes...couple that with a 10" converter and you should be good to go.

The "realistic" part...when all is said and done, you will have probably spent at least $2,500 for the roller cam, lifters, springs, retainers, locks, head work to accommodate the large springs, rockers, converter........all this with stock exhaust manifolds and stock heads will have your engine breathing and exhaling through a straw. This will probably have you running 13's if everything works out well. If 13's is your goal, there are MUCH more efficient ways to get there (like spending half that, or less). JMHO.