26 Degree Only in Racing Environments

The only change was moving the spark plug wires from over-the-valves to the left side. This resulted in 1.5 HP increase at 2500 rpm.  We recommend, for street use, timing to be set at 28 degree advance. We are recommending 26 degrees only in racing environments where idle is not an issue and rpms over 3000 are used.

 Source: http://www.secretsofspeed.com/LION.htm

Source: http://www.secretsofspeed.com/LION.htm