For others coming later to this thread I am posting info I have found for the late 1112403 distributor. Pay attention to "distributor" degrees versus "engine" degrees, don't get them confused.
http://restorecarsclassifieds.com/wiki/articles.php?n=161 “Page #0854"
NOTE: Listing for 1959 6 cylinder cars. Latest distributor 1112403 for service or retrofit.
IGNITION
FIRING ORDER: 1-5-3-6-2-4.
SPARK PLUG GAP: .035".
Spark Plugs - AC No. 44.
COIL: Delco -Remy 1115120.
Ignition Current: 1.8 amps, idling, 4.0 amps, stopped.
Resistor - Resistance type cable used in harness between bulkhead disconnect plug and starter solenoid bypass terminal (in coil primary circuit for regular operation). Bypassed during cranking when coil energized directly from starter solenoid bypass terminal. (resistor is for 12V system)
DISTRIBUTOR: Delco-Remy 1112403.
Condenser - Delco-Remy 1928111. Capacity .18-.23 mfd.
Contact Point Set - Delco-Remy 1924571.
Breaker Gap - .016".
Cam Angle - 28-35° with .016" gap.
-BREAKER GAP CAUTION: Manufacturer recommends final check with feeler gauge or dial indicator if dwell meter used to set points.
Breaker Arm Spring Tension • 19-23 ozs.
Rotation - Clockwise viewed from above.
Automatic Advance (mechanical)
Degrees----Distr.-----RPM-------------Degrees----Eng.------RPM
0-2°--------------------375----------------0-4°------------------750
4-6°--------------------700----------------8-12°-----------------1400
9-11°-------------------1350--------------12-14°----------------1750
18-22°------------------2700-------------24-28°-----------------3500
Octane Selector: Adjustment on distributor provides 10° spark advance or retard from center "0" position.
Vacuum Spark Control: Delco-Remy 1116140.
Vacuum Advance
Distr. Degrees-----------------Eng. Degrees---------Vacuum (" of Hg)
Start-----------------------------0°---------------------4-6"
10-12°---------------------------20-24°----------------15-16"
IGNITION TIMING Setting - 5° BTDC at idle speed with vacuum line disconnected.
NOTE - Supersedes previous specification of TDC and will give better economy. Timing Mark - First short vertical line on flywheel, clockwise from steel timing ball (TDC) insert. Line
up with pointer in inspection hole in right front face of housing with Octane Selector set on "0".
Paul
