need help, really rough running KA

[club240sucks]

ok my ka only has 70k on the engine we just swapped it in, its running real rough, when i push down the gas even remotely hard it wants to stall or doesnt wanna go anywhere

the real rough area is around 3000rpms give or take in different gears, but its usually real close to there

i was thinking my problem is my MAF or TPS but when i unplugged my MAF as i was told to do by ... well i forgot his name on here... but i did it and it still was running like that, am i right to say it is my TPS

[Burnsey]

should prolly be able to search and find a solution... but sounds to me like the MAF is bad. It kinda acts/sets a rev limit of 3,000-3,200 RPM's and won't go over that. check for vac leaks and timing also. TPS is another good thing to check.