RB20 help, car is extremely sluggish in low rpms

[Ricerocket99]

Hey everyone, i just finished swapping in my rb20 into my 89 coupe, motor is bone stock, have a fmic, walbro 255, and a stock exhaust.

so heres my problem, as i started to drive it, giving it only half throtle, in order to break in the clutch i noticed that the car cuts out, very sluggish, as soon as i take off (low rpms) until i hit boost, once im in boost it runs fine. So then i decided to give it wide open throtle an makes no difference, it doesn't F'n go anywhere. i also tried this in 2nd 3rd and 4th, same thing in every gear at low rpms

I checked the ignitor, coil packs, MAF, and also the injectors, and came to find out i have a bad injector. Could this be why at low rpms my car is very sluggish, i searched and found that people had the same problem but once in boost not before

Any help and suggestions would be of great help, thanks in advance guys

[Joe]

whats your timing set at

and how do you know its a bad injector?

p.s. please resize your sig, the guidelines are here zerothread?id=286018

[Ricerocket99]

Sorry about the sig, totally forgot it was like that, well im not exactly sure what the timing is set at but ive heard its supposed to be around 15, but i'll take a look.

The reason i say i have a bad injector is because i checked them all, and one is making an odd pulsing sound, much louder than the rest,

Other than that im not to sure what i can be

[Ricerocket99]

Anyone else?

[Yellow4g63]

Check the gap on your plugs maybe close them down a little see if that helps.