Welcome. I have '67 400 coupe so I am pretty familiar with the 1st year. I would start off by getting the original factory documents for your car so you know what you really have:

Pontiac Historical Services

Next I offer this website with excellent factory and service documentation online in the "Library" section:

The First Gen Site

I would also put together my own reference library. I am probably old school, but I like books and manuals at my fingertips. I would suggest having on hand:

1) Factory 1967 Fisher Body Manual
2) Factory 1967 Pontiac Service Manual
3) Factory 1967 Supplemental Firebird Service Manual
4) Camaro Restoration Handbook by Ron Sessions (shows you how to disassemble the car)
5) 1967 Camaro Factory Assembly Manual (Shows you how to put it back together/no Firebird manual available)
6) Chilton's 1967 - 81 Firebird Manual for basic info (like tuneup specs)