What are some good number for initial and total? When does it become a requirement to start limiting mech advance? I suppose what I am asking is does it even help on an otherwise "stock" engine such as a 5.9 truck motor with a carb an no other mods?
Hell yeah it'll help. I would "start" at 15 initial and see how it does. The Magnums have a shorter deck height and higher compression than their LA counterparts, so you might get into detonation before the LA would. Even the stock engine would still benefit from the FBO limiter plate. I would keep total to 36 "at the most" all in by 3000 in a heavy truck.
