not sure about the other two, but pretty sure they arent holes into the manifold.
1994 Range Rover 4.6 HSE - Rough, but has an MOT! 2000 Audi A4 1.8T Quattro - Long term weekend car, 'slightly' modified... 2022 Skoda Enyaq - EV daily driver.
Hehe holes in the manifold will definitely cause vac leaks...
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