hello, i have tried to adjust my efi but i still feel that the Engine was running better with

my holley 750 dp. i have an 454 with 0.03 bore, roller cam with duration 218/224 at 0.050 and valve lift 0.510. an edelbrock dubble plane intake, 12,5:1 compression ratio, standard oval port cylinderheads. the efi is controlling my ignition and i have an 6al. when the car was running best i was using a holley 750dp on the primary port injector 75 and a 330 cam with an 30cc pump, secondary port injector 82, and a 330 cam with an 30cc pump. i hope you can help me. /thx