This is not a question but I wanted to share the resolution I had to my earlier post where my 1971 Lemans 350 had rough idle and no acceleration. I found the cam rolled over so replaced it and the lifters, still poor so had the carb re-built...huge difference. Now that they are fixed I've learned of the vacuum advance that is not working much. I'm just getting a new distributor and should really make things run nice. So if I were to do this again I would have 1) checked the distributor, 2) the carb, and 3) the cam. While the cam did need replacing, it's a lot of money I might not have needed to spend right away. Also, if anyone needs a guy to rebuild carbs, there is an amazing guy my backyard. I don't think I should post business names here so if you're interested just email me directly. I hope this helps someone!
Thanks for sharing, I'm sure it will help others who frequent this site.
Search Pontiac Le Mans Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Pontiac Le Mans Experts