Spark Plug Make: Champion 870
Spark Plug Gap, Inch: .035
Firing Order: 15486372 (from front to rear: Right 1-2-3-4; left 5-6-7-8
Ignition Timing: Marks on Vib. Damp. Wide mark is TDC and each smaller mark is 2,4,6,8,10° d before TDC. Set timing at 3° BTDC on cars with manual trans. and 6 d BTDC on Fordomatic cars.
Engine Idle Speed, RPM: Manual shift trans. 475; automatic shift trans. 450
Compression Pressure & Cranking Speed: 130 Min.
Cam Angle, degrees: 28
Breaker Gap, Inch: .014-.016
Condenser Capacity: .21-.25 Mfds.
Breaker Arm Spring Tension: 17-20 Oz.
Distributor Vacuum Advance Data:
Centrifugal Advance:
Part No. FAE-12127A:
With 2 Barrel Carb:
Degrees advance at 300 RPM: 0 - 1/2, Inches vacuum: .15
Degrees advance at 400 RPM: 1/4 - 1-1/4; Inches vacuum: .28
Degrees advance at 800 RPM: 6-1/2 - 7-1/2; Inches vacuum: .96
Degrees advance at 1200 RPM: 11-1/2 - 12-3/4, Inches vacuum: 2.21
Degrees advance at 1600 RPM: 14-1/2 - 15-1/2, Inches vacuum: 3.41
Degrees advance at 2000 RPM: 16 - 17-1/4, Inches vacuum: 4.6
With 4 Barrel Carb:
Degrees advance at 300 RPM: 0 - 1/2, Inches vacuum: .16
Degrees advance at 400 RPM: 0 - 1; Inches vacuum: .29
Degrees advance at 800 RPM: 5-1/2 - 6-1/2; Inches vacuum: .88
Degrees advance at 1200 RPM: 8-1/2 - 9-1/2, Inches vacuum: 1.27
Degrees advance at 1600 RPM: 11 - 12, Inches vacuum: 1.73
Degrees advance at 2000 RPM: 13 - 14-1/2, Inches vacuum: 2.19
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