This distributor has the melonized cam drive gear P/N 10456413 for steel roller camshafts. This distributor is required on all crate engines and roller camshafts that are made of steel. If engines are assembled not using this gear, it may affect your engine warranty. Use connector wire P/N 8917052 to ignition.
Distributor- Part # 93440806 GM HEI Large Cap style with internal Ignition Coil.
Timing Should be Set @ 32° Total @ 3,000 RPM With Vacuum Advance Disconnected. 10° initial timing at idle should provide this total. Vacuum Advance should be connected to a ported source at the carburetor.
|Mechanical Advance Curve||Vacuum Advance|
|1,100 RPM - 0°||0° @ 3"|
|1,600 RPM - 12.0°||20° @ 7.5"|
|2,400 RPM - 16.0°|
|4,600 RPM - 22°|