where on firewall is ok to drill for boost guage line (S14)

[redsuns3838]

ive checked on the drivers side of the firewall for a hole to thread my boost guage vac line through and havent found anything so im thinking ill probly have to drill a hole. my boost guage is going to be mounted infront of my guage cluster on the steering column, so i guess id want something that would be relatively close.
just wondering where you guys drilled your holes on your S14 to thread the vac line through? i was thinking to the left (assuming ur facing the engine bay, so towards passenger side) of the brake booster above and slightly to the right of the spot where steering column hits the firewall. would that be a good spot? im just worried about drilling through it and fucking something up really bad.
anyways if someone could give me some advice, id appreciate it.
thanks a lot

[projectRDM]

There are dozens of holes you can use without drilling. You haven't looked hard enough.
Pull the rear portion of the fender liner out, you'll find what you need easily.