360 magnum valve train

I'm running 12 degrees initial 32 total. I can bum it up to 14 or 15 degrees initial and be at 34 or 35 total. I was just always told the magnums dont need as much total timing and make more power at 32 total. Dont know how true that is??? i suppose it could handle 34 degrees ok. Or i could just pull my distributer out and set the mechanical advance at 16 or 18 degrees so i could run 14 to 16 initial and stay at 32 total. right now i got the mechnical advance set at 20 degrees with 12 degrees initial for 32 total. I could drop mechanical advance down to 16 and run initial of 16 for a total of 32 total. I have the mopar spring kit so it wouldnt be a problem to do that.