| Part No. | T3T65572 | T3T61980A | T3T65571 | T4T63372G | T4T63371G |
| Centrifugal Advance Starts | 0 at 800 Degrees At RPM (deg @ rpm) | 0 at 800 Degrees At RPM (deg @ rpm) | 0 at 800 Degrees At RPM (deg @ rpm) | 0 at 600 Degrees At RPM (deg @ rpm) | 0 at 600 Degrees At RPM (deg @ rpm) |
| Intermediate Cent. Advance | 4.5 at 1400 Degrees At RPM (deg @ rpm) | 4.5 at 1400 Degrees At RPM (deg @ rpm) | 4.5 at 1400 Degrees At RPM (deg @ rpm) | 5 at 1000 Degrees At RPM (deg @ rpm) | 6.5 at 1150 Degrees At RPM (deg @ rpm) |
| Full Cent. Advance | 9.5 at 3000 Degrees At RPM (deg @ rpm) | 9.5 at 3000 Degrees At RPM (deg @ rpm) | 9.5 at 3000 Degrees At RPM (deg @ rpm) | 16.5 at 3000 Degrees At RPM (deg @ rpm) | 12.5 at 2500 Degrees At RPM (deg @ rpm) |
| Vacuum to Start Plunger | 2.35 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) | 3.15 Inch Of Mercury (in Hg) |
| Max. Vacuum Advance | 2.5 at 3.15 Degrees At Inches Mercury (deg @ in hg) | 11.5 at 11.02 Degrees At Inches Mercury (deg @ in hg) | 10 at 14.17 Degrees At Inches Mercury (deg @ in hg) | 11.5 at 11.02 Degrees At Inches Mercury (deg @ in hg) | 11.5 at 11.02 Degrees At Inches Mercury (deg @ in hg) |
| Max. Retard | --- | --- | --- | --- | --- |