Black_Z28

Anyone out there have a install write-up on installing gauages into the vents of firebirds? I would like to install one more gauge in my car, and would prefer to stick with a two guage pillar, instead of going to a 3 guage pillar. Right now I have boost and fuel pressure but I really would like to add a wideband guage to the mix. Anyways, any help would be great. Thanks.