ok this is the same exact setup same ecu same injectors same everything i had in my car in the beginning and it ran fine but i cracked a sleeve which is a stock lsv boosted
i rebuilt this motor as of now it has around 400-500 miles on it the first day i cranked it up it idled a lil rough but fine at around 1000 then u rev it and after 1/8 throttle it starts running on 3 cylinders or missfiring really bad
i have new cap new plugs new rotor button such forth so on
i changed the fuel injectors around and it ran perfect for about a full day then slowly dropped again and now its back to running like shit any ideas

if i drive it and barely throttle it does ok revs up fine but once i start pushing the pedal down more it starts running on three cylinders i have no idea wtf it is and im about tired of messing with it im looking for ideas people!