car still not running right....help!

[driftkid316]

hey fellas, i need your assistance. my car KA into ae86 swap is done, i just still cant get it running right. i can start it but would have to keep my foot ont he gas to keep it on sometimes. it would bog out and die if i tried to rev it slowly but if i rev'd it fast it would do fine. so i tried running the motor with no maf, and it idled fine and rev'd, up to about 2500 rpm, obviously cause no maf, slow or fast. so i figured i needed a new maf, and it ran a tad better but still the same symptoms. so could anyone help[ me out with this one, why does it feel fine with no maf, and shitty with one. im thinking my timing could be off but im pretty sure its really close. even if it was timing, why does it feel fine with no maf. help me out guys. thanks in advance