im running a MS3 in my carbed ls1. here is the chart of pre-set timing curves to choose from using the MSD 6LS ignition
the bottom figures are when using a MAP sensor. i dont plan on using a MAP just the mechanical advance if you want to call it that. the box also comes with software to program a custom timing curve.
im used to tuning traditional small block chevys. i was told the rule of thumb was to have all your timing in by 3000-3500 (usually a total of 36*) i run 15* initial and 21* mechanical with my SBC.
what do you tuners usually set your timing curves like?