Im fixing to do an overhaul on my 88 5.0 and replacing everything but the crankshaft and pistons. this would be the best time for me to install an E303 cam. I want it more for the sound than performance. I have a manual t5 and gt40p heads and explorer intake. Again im not look so much for performance, I just love that cam sound. Also its my daily driver. Will I need any modifications to my valve train?