Firewall cable and hose routing

[Twisted]

I'm in the process of installing mechanical gauges and I need to run the hoses through the firewall. Are there any factory grommeted holes that you can snake a braided line through or do I have to drill?

Thanks

 

[4.6litrebeater]

there is one, driver side, i believe its for the cruise control cable or something, but it is a large grommet, just ran soem wires through it today in fact for an alarm