With 3T6XXX or 4T6XXX Series Distributors
| Part No. | T3T61971 | T3T61972 | T3T61973 | T3T626778 | T3T63175 | T4T63371 | T4T63372 |
| Centrifugal Advance Starts | 0 at 600 Degrees At RPM (deg @ rpm) | 0 at 600 Degrees At RPM (deg @ rpm) | 0 at 600 Degrees At RPM (deg @ rpm) | 0 at 750 Degrees At RPM (deg @ rpm) | 0 at 500 Degrees At RPM (deg @ rpm) | 0 at 600 Degrees At RPM (deg @ rpm) | 0 at 600 Degrees At RPM (deg @ rpm) |
| Intermediate Cent. Advance | 7 at 1900 Degrees At RPM (deg @ rpm) | 7 at 1900 Degrees At RPM (deg @ rpm) | 7 at 1900 Degrees At RPM (deg @ rpm) | 4.5 at 1250 Degrees At RPM (deg @ rpm) | 6 at 1250 Degrees At RPM (deg @ rpm) | 6.5 at 1150 Degrees At RPM (deg @ rpm) | 5 at 1000 Degrees At RPM (deg @ rpm) |
| Full Cent. Advance | 8.5 at 2500 Degrees At RPM (deg @ rpm) | 8.5 at 2500 Degrees At RPM (deg @ rpm) | 8.5 at 2500 Degrees At RPM (deg @ rpm) | 13 at 3000 Degrees At RPM (deg @ rpm) | 13 at 2650 Degrees At RPM (deg @ rpm) | 12.5 at 2500 Degrees At RPM (deg @ rpm) | 16.5 at 3000 Degrees At RPM (deg @ rpm) |
| Vacuum to Start Plunger | 5.12 Inch Of Mercury (in Hg) | 5.12 Inch Of Mercury (in Hg) | 3.15 Inch Of Mercury (in Hg) | 3.15 Inch Of Mercury (in Hg) | 3.15 Inch Of Mercury (in Hg) | 3.1 Inch Of Mercury (in Hg) | 3.1 Inch Of Mercury (in Hg) |
| Max. Vacuum Advance | 30 at 11.8 Degrees At Inches Mercury (deg @ in hg) | 23 at 11 Degrees At Inches Mercury (deg @ in hg) | 20 at 14 Degrees At Inches Mercury (deg @ in hg) | 23 at 11 Degrees At Inches Mercury (deg @ in hg) | 23 at 10.25 Degrees At Inches Mercury (deg @ in hg) | 23 at 11 Degrees At Inches Mercury (deg @ in hg) | 23 at 11 Degrees At Inches Mercury (deg @ in hg) |
| Maximum Retard | --- | --- | --- | --- | 18 at 18 Degrees At Inches Mercury (deg @ in hg) Note: Distributor Pressure. | 7 at 17.7 Degrees At Inches Mercury (deg @ in hg) Note: Distributor Pressure. | 7 at 17.7 Degrees At Inches Mercury (deg @ in hg) Note: Distributor Pressure. |