labor is 2.5 hours plus the plugs and/or coils so if a regular tune up is done with a throttle bore service and oil change it should run about $350.00

Here are guides to show you how the job is done.

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

and

https://www.2carpros.com/articles/how-to-change-engine-oil-and-filter

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