Seems like things have been a little slow on our forum lately, so I thought I’d start a new thread to liven up discussion.

I have owned a High Output Firebird for nearly 48 years. As you can imagine, in that time I’ve worked on or replaced nearly every part or system in the car. I’ve learned a lot about these cars. But what I’ve learned the most is that there’s always more to learn.
As I’ve been taking the car to shows the past few years the subject of the HO car continues to come up. I am often asked ‘what is the difference between an HO Firebird and a base Firebird?’
I tell them about the heads of course, and the cam, the heavy duty transmission etc. but as sure as I am that there’s always more to learn, I know that there is more to tell. So…. How bout it? What have the rest of you discovered during your years and research.
Differences in: engine, cooling system, fuel system, suspension, brakes and things like production numbers. I’m sure many of you have more to offer on these and more.