460 7.5L timing chain help
 

I am new to this forum and need some advice on cam timing. I have a 96 F350 4x4 with a 460 7.5l motor. I would like to advance the cam timing due to from factory the timing at the cam is retarded 4 or 6 degrees. how much advance should i go? should i go to straight up or 2 dregress advance?thanks in advance for the help!