1999 Mustang Gt Misfire/hesitation {help}

Hello I have a 1999 mustang gt that I have been working on for well over a year and still haven't found the problem. I originally bought the car off of craigslist for 3900 with 130,000 miles at the time it seemed like a good car ran fine no problems. after two weeks of daily driving it the motor went bad. the car sat for about 3 months till I then decided to take out the motor myself and take it to a shop to get it rebuilt. I then put the motor back and went for a first test drive and ran like , had no power at all. The car hesitates when I step on the throttle and when it gets to about 3 thousand rpms it suddenly grabs and has all its power back. I took it to a shop and they told me to get all 8 new ignition coils I put them in and it ran fine like when I first bought the car for about 10 miles and then started to hesitate again. After that I took out the spark plugs and noticed that the 4 spark plugs on the passenger side were running lean and the 4 on the driver side were running rich. I recently had the check engine light tester plugged in and the codes are p0301,p1130,p1150

this is what I've tried to the car since I've rebuilt the engine
-ford motorcraft coils
-ford motorcraft spark plugs
-brand new egr valve
-TPS sensor
-cleaned MAF sensor
-brand new flywheel and clutch
-rebuilt transmission
-1 new fuel injector for the code P0301
-checked if all the wiring harness connectors were plugged in properly and they were
NONE of this worked