To find the correct firing order, you should:
* Check your owner's manual: This is the most reliable source.
* Look for a sticker under the hood: Some vehicles have a sticker with engine specifications, including the firing order.
* Use an online engine database: Websites like GMPartsDirect or others specializing in automotive parts often have specifications for various engines. You'll need to input the engine's details.
Without more information about the specific Chevy V6 engine, I cannot give you the firing order.