engine problem???

hello in new to moparforums hope u guys can help me out...Just spent 6 months over hauling my 1972 dodge challenger 340 wedge,with an edelbrock 600 cfm 4 barrel carb, i got a manual choke new rockers and lifters,pretty much everything is new cept the carb which i put in about 5 years ago..the problem is im burning rich an losing idle on accelaration and i cant figure out why????

I ordered a tuning kit but i dont have high hopes i was pondering on switching to a new holley carb maybe a 650...any ideas are welcomed :)
Author: mr.magoo