"http://www.sdpc2000.com/UserFiles/Image/msd8680.jpg" alt="">MSD
Timing Controls are designed so engines with locked out timing or
crank triggers can take advantage of an ignition curve.
"c55"> The weights and springs inside your existing
distributor are removed and the mechanical advance is locked out so
the timing is controlled entirely by the MSD Timing Control.
class="c55"> By controlling the ignition
electronically, the timing curves can be set faster, more
accurately, and with more adjustability than mechanical
advances. The Timing Controls
provide reliable operation throughout the RPM range, and must be
used with an MSD 6, 7, 8 or 10 Series Ignition Control.