to get what 385HP and 404 torque? On a stage V? The reason it will help is because JWT ECU run fuel rich.. And if you run higher octane race fuel or just octane booster. You are usually burning really rich.. When I did a dyno I painted the wall black.. I went back there on monday and that black smoke is still there on the wall..
I will hopefully be back on the dyno short after I put my intercoolers, dual pop, AFC, and maybe injectors if not then a fuel pressure regulator..