Arizona Speed and Marine has a great kit to squeeze 25-30 horsepower out of your 454 Magnum, 502 EFI, 502 Magnum, or HP500 EFI.
Re-calibration of your ecu precisely controls spark, fuel, idle speed and rev-limit.
Show quality polished billet flame arrestor increases airflow.
MSD 6M 2L,with rev limit, multiple spark ignition box for better idle and hotter spark
Adjustable fuel pressure regulator kit