Centrifugal advance curve – MSD 8350 Ford 351C-460 Ready-To-Run Pro-Billet Distributor Installation User Manual

Page 3

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INSTALLATION INSTRUCTIONS

3

M S D  

•   W W W . M S D P E R F O R M A N C E . C O M   •   ( 9 1 5 )   8 5 7 - 5 2 0 0   •   F A X   ( 9 1 5 )   8 5 7 - 3 3 4 4

CENTRIFUGAL ADVANCE CURVE

SELECTING THE ADVANCE SPRINGS

Figure 2 The Factory Equipped Curve.

Timing Curve From Factory

Figure 4 Advance Curves.

Figure 3 Spring Combination Chart.

SPRING COMBINATION

RATE OF ADVANCE

FIGURE 4

2- Heavy Silver 

SLOWEST 

A

1- Heavy Silver 

B

1- Light Blue 

1-Heavy Silver 

C

1-Light Silver 

2- Light Blue 

D

1- Light Silver 

E

1- Light Blue 

2- Light Silver 

FASTEST 

F

The rate, or how quick the advance comes in 

is determined by the type of springs which are 

installed on the distributor.  The MSD distributors 

are  equipped  with  two  Heavy  Silver  springs 

installed.    These  will  give  you  the  slowest

advance  curve  possible  (Figure  2).    The  parts 

kit contains two additional sets of springs which 

can  be  used  to  match  the  advance  curve  to 

your particular application. Refer to the Spring 

Combination Chart (Figure 3) for combinations 

that can be achieved.

To change the springs, remove the cap and rotor 

and use needlenose pliers to remove the springs. 

Be sure the new springs seat in the groove on 

the pin.

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