I love to see as much as possible posted about Pontiac engines, but I would like to clarify a few points about this post.
Engine HP ratings
One barrel; 110, 115, 120 and 140.
Four barrel; 155, 166 and 184.
Some of these numbers are year dependent and the 184HP was special, over the counter only.
Next, the OHC 6 first came out in 66, not 67.
Lastly, not Pontiac... I believe the Buick V6 was first available in 63.
I don't mean to sound critical, but if someone is looking for an answer to a question, it's better to find the correct one.
Thanks, Mark