Pertronix Billet Advance "16 degree" Limiters
16 degree maximum advance
Advance limiters for Flame-Thrower billet distributors.
Pair of 16 degree limiters to be fitted inside the billet distributor.
for limiting mechanical ignition advance to 16 degrees, ie at idle 8 degrees then maximum full advance would be 24 degrees (perfect for turbocharged VW engines)