having a problem i cant figure out on my b26

Ok I jus rebuilt the motor again, timing was dead on, had rust in tank, so I replaced tank, pump sock, filter and plugs. It runs but has a miss at idle and when I'm keeping constant speed of w.e. mph it spudders real bad loss of power. I mash the gas and runs like a champ. Now I do have my maf bolted down at an angle idk if that will affect it. My dad says timing, my friend says ignition coil and I think it might be my tps, Injectors or maybe q vac leak it something but I don't have emissions on the truck everything is capped off. I know there is a wire under dash that turns off the cel so idk any help would be nice thanks.

Check the output voltage of the o2 sensor.

could be many things. check for vac. leaks first. then do a leak down test and check how much blow by you have. and make sure your timing is on.

my truck was doing the same thing but i had a burnt exhaust valve.

ya my 2.6 is doing the same thing but its carbed, not too sure what it is too

I unplugged both plugs on throttle body and runs a lot better. I guess that needz to be replaced?