Unknown Cam

well since im feeling lazy and still really just looking at options let me ask you guys this. If i keep the bottom as is..stock, what cam/head combo will give me some good street punch? I do not plan on any strip use...for now. just want to wipe the smiles of these damn rice rockets running around base! i have a dual plane performer intake and will be changing my 600cfm double pump to match the cam/heads. I would like to keep my budget around $2500-$3000 tops.
As mentioned i am also looking to change the torque converter to one best suited to the final engine build. Currently running 3.55 sure grip, dont want to change that if i can help it.