7.3 Noise

[powerlover]

Hi everyone new to the diesel world found myself a 99 f250 with 64,000 miles on the clock very nice trk i am having a trouble locating a noise in the engine area i understand the sound a 7.3 makes but this one sounds a lot diff than others of same year not sure but i am thinking FUEL CACKLE . Problem is i have 60 #s fuel pressure in each head not sure if thats it or not. Modifications so far banks 4 inch exhaust with power elbow, afe cold air intake, new torque conv had dreaded marble bouncing around in torque conv sounded like, removed valve cover drivers side to check if oil coming out of inj all good no 8 not marked LL ?? Recently purchased rif raf oil crossover have not installed yet was wondering if i should puchase rif raf fuel crossover?? Question does anyone have sound clip of a 7.3 with fuel cackle ??? would be greatly appreciated