Alright I've got to tell ya this your setup is a joke. get rid of the rpm for an single plenum torker or torker II maybe If you can find a weiand excelarator then a 1-2" spacer something like a wilson four hole. Throw the carb in the junk pile and get a Summit 750 It has annular boosters or the new speed demon 725. Get yourself some 1 3/4 long tube headers with 2.5- 2.750 pipe oh don't forget the x pipe, a 2800-3000 stall converter and If you don't want to go with the 4.10 step down to a 3.73 or even a 3.55 with a way taller tire which will give you more wheel speed. Set everything where it should be timing, carb, rockers, etc. and I put money down that you will get down to the high 12's low 13's.
