The 123\ALFA-4-R is designed for the Giulia Nova, Spider & Bertone 2000, the Duetto and many others. There are also a couple of special curves, as used by well respected tuners.
The unit offers a maximum total of 16 advance-curves to be selected by the end-user.
Please take a look in the table below for available advance curves.
4
| curve | advance starts [rpm crankshaft] | max. advance [rpm] | [degr. crankshaft] | vac. adv. starts [mmHg] | max. vac. adv. [mmHg] | [degr.] | replaces | remark |
| 0 | 1000 | 5000 | 25 | 260 | 380 | 10 | 0231 129 036 | Giulia Nuova 1300-1600 |
| 1 | 700 | 4200 | 32 | 260 | 380 | 10 | 0231 110 045 | Bertone 2000 Spider 2000 |
| 2 | 700 | 5000 | 38 | 260 | 380 | 13 | 0231 112 060 | Giulia TI |
| 3 | 700 | 5000 | 38 | 260 | 380 | 13 | 0231 112 065 | Giulia TI |
| 4 | 700 | 5000 | 37 | 260 | 380 | 10 | 0231 110 041 | Duetto1600 |
| 5 | 700 | 5000 | 37 | 260 | 380 | 10 | 0231 110 044 | Giulia Sprint |
| 6 | 700 | 5000 | 37 | 260 | 380 | 10 | 0231 110 044 | Giulia GT, Giulia GTA |
| 7 | 700 | 5000 | 37 | 260 | 380 | 10 | BOSCH JF4 | Bertone 1750 Giulia Super 1300, 1600 |
| 8 | 700 | 5000 | 37 | 260 | 380 | 10 | 0231 110 032 | Spider 1750 |
| 9 | 700 | 5000 | 37 | 260 | 380 | 10 | 0231 110 034 | Giulia Super |
| A | 1000 | 5400 | 30 | 260 | 380 | 10 | 0231 178 006 | Alfa '72-'78 |
| B | 700 | 5000 | 37 | 260 | 380 | 10 | 0231 110 044 | same as # 5 |
| C | 700 | 5000 | 37 | 260 | 380 | 10 | 0231 110 044 | same as # 5 |
| D | 1000 | 4000 | 21 | 260 | 380 | 10 | tuning | - |
| E | 700 | 4000 | 32 | 260 | 380 | 10 | shankle | #4255 |
| F | 500 | 5000 | 36 | 260 | 380 | 10 | Marelli | S103B S103BA S166A |
