| Year | 2015 |
| Date | 17-Apr |
| Volume | 214 |
| Issue | 4,506 |
| Page | 574 |
| Category | Internal Combustion |
| Part | 12 |
| Title | Internal Combustion Theory and Practice |
| Author | Ron Wright |
| Notes | A retired technical college teacher provides an in-depth course in I/C. Inlet manifold vacuum (depression), pressure measurement, vacuum measurement, demonstration, test procedures and gauge indications, effects of high performance valve timing |