The best way to get to the spark plugs on a 69 CAMARO is to drive out and roll the car on a country road. Make sure it ends up on its roof. Then you can reach in from above at your leisure. Wait until the exhaust pipe cools, though.
Now, on a 69 FIREBIRD, you take off the front right wheel and reach in through the wheel well opening with a socket wrench with a universal joint on it. To help keep the universal from flopping around, wrap a couple layers of electrical tape on the joint.
To send a private message, simply click on their name where they post. Their profile will come up and you will have to click on "Send New Private Message." You can also go to the top of this page and click on "Directory" and type their user name in the box.
There is a difference in brands when it comes to fit and performance. Make sure you run your choices past a few of the guys here before you part with your cash. Headers and dash pads are two of the items that seem to generate a lot of polarity.
The brake booster might be different between power drums and power discs. I don't know for sure. I've got non-power drums all around, so I am replacing EVERYHTING all the way out to the wheels.