340 Build

Hi I would like some help with a motor Ive just done with the help of Dave Hughs, I bulit! its a 340 bored 40 over, Icon pistons,hastings rings, 10-1 compression,63cc Edlebrock Alum rpm heads 202 & 1.6 valves , 1.6 Hughes alum rockers, hughes pushrods, 750 Holley track warrior carb, pro billit msd dist, Msd 6al box, Msd wires and champion plugs, Hooker pro comp long tube headers with flow masters ,Edelbrock air gap intake. timing is at 34 degrees total, Everything is as suggested by Dave and ordered through him.
This set up is not that impressive. I thought it would have more power, according to Dave it shoud run 11s in the quarter, I dont think it will! its in a 66 Valiant with a 833 4 speed and 373 gear with 28" tire. Does anything look out of place here? Thank you in advance. the cam is 570 intake and 583 exaust with a 1.6 rocker, duration @ .050" 232 intake and 236 exhaust lobe seperation is 108 and installed centerline is 104