Help improve my combo!

Alright, i was just wondering if anybody would have some suggestions to help propel my car a little lower into the 12's than it currently runs (12.50's) I'd like to run 20's or low 30's but am not sure on what to change to gain a little more power. Currently i'm running what's in the signature, 165's with a b303 installed 2 degrees advanced with 1.72 roller rockers. I'm thinking the cam is what i'll be changing but am not sure what i'd like to go with. I'm open for any suggestions.

Thanks

alright, the motor is an essentially stock rebuild 306, pedestal mount afr 165's with yella terra 1.72 roller rockers, b303 installed 2 degrees advaced, cobra intake with a lower i slightly ported myself, 70mm tb, flowtech longtube headers with flowtech x-pipe, spintech pro street mufflers with turn downs. Hotchkis lca's, stock uppers with poly bushings. Lakewood 50/50 shocks in the rear, stock up front with 4 cyl springs. 3.55 gears with a new traction lock. The car doesn't have a lot done for weight reduction, A/C and fog lamps/bracket removed. Still has 19 lb injectors and a stock fuel pump with an afpr set at 44 pounds. My best 60 ft is a 1.66, but on my 12.51 run it was a 1.78 (spun the et streets). I honestly think it'll run in the 40's the way it is but would like to make a little more power and maybe get some 20's til a turbo arrives...

I'd like to leave this to cam/intake swaps and stuff like that (bolt ons). So basically, what cam/intake would you recomend? I'm open for suggestions