| 1 | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 2 | Pontiac 2+2 - 1965-67 |  |  |  |  |  |
| 3 | Model year | Engine name | Displacement | Carburetor series (bbl) | Output @ rpm | Torque @ rpm |
| 4 | 1965-66 | 2+2 V8 | 421 cu in (6.9 L) | Carter C4-AFB (4) | 338 hp (252 kW; 343 PS) @ 4600 | 459 lb⋅ft (622 N⋅m) @ 2800 |
| 5 | 1965-66 | 2+2 V8 | 421 cu in (6.9 L) | Rochester 2-G (2) x3 | 356 hp (265 kW; 361 PS) @ 4800 | 459 lb⋅ft (622 N⋅m) @ 3200 |
| 6 | 1965-66 | 2+2 HO V8 | 421 cu in (6.9 L) | Rochester 2-G (2) x3 | 376 hp (280 kW; 381 PS) @ 5000 | 461 lb⋅ft (625 N⋅m) @ 3600 |
| 7 | 1967 | 2+2 V8 | 428 cu in (7.0 L) | Rochester Q-Jet (4) | 360 hp (268 kW; 365 PS) @ 4600 | 472 lb⋅ft (640 N⋅m) @ 2800 |
| 8 | 1967 | 2+2 HO V8 | 428 cu in (7.0 L) | Rochester Q-Jet (4) | 376 hp (280 kW; 381 PS) @ 5100 | 465 lb⋅ft (630 N⋅m) |

Question: When was the V8 displacement bumped up to the 428 cu ?
Answer: In 1965, the V8 displacement was 421 cu in (6.9 L) and was bumped up to the 428 cu in 1967.