Car barely takes off after cam install

[72GrabberMav]

Ok guys, i admit i sucked at engine building last year and by no means am an expert yet, but im getting better. Those parts i got were dirt cheap, i bought the used so i took what i could get. I only have about $1000 invested in the whole car and it is pretty nice. i know is that it is a crane powermax 290 adv. dur. and 484 lift, hydr. flat tappet.. I know i did not know what these parts meant at the time i just took them and wanted a lopey idle. The highrise intake looked cool and the 4 barrel carb was what i wanted. The headers came with the car. Im just asking for help to get the most power out of the car i can with what i got instead of going down to a smaller intake or whatever. If it is heads i need, then i will get heads/stall/ and gears. What heads do you reccommend?