6 new injectors and have a miss from 1350-2050 rpm

i replaced all 6 injectors with stock remans for pensicola fuel and not had the best of luck with them. so far out of the 6 i had to replace 4 more. but i still have a miss on #1 and it was the most recent injector i replaced. the truck starts and idles fine but it misses from around 1350 to 2050. i did an injector kill test and in that rpm range i shut off number one a the miss goes away and the truck runs smooth. i just reringed and bearinged the engine so i know its not a compression issue and i replaced the hpfc when i put the first new injector in, new valve cover gasket, checked valve lash, and have checked all the wiring from the ecm to the vc gasket so i dont know what else to do. i just dont see being the new injector but i havent ruled it out yet.

the trucks an 07 5.9