Anybody go from performer to an rpm air gap

building blocks... if the carb metering at idle is a pile o'crap, guess what, the rest of the metering needs to be compromised to get it right all the way up.

Insufficient initial timing causes those issues and a car with it set properly will outperform, especially 60' where it counts, one set crappy. Set initial where the starter or engine tells you and use that as a foundation to tailor the entire curve. Try a distributor in that engine with 30* of mechanical advance, but the total and where it all comes in is right, and see how well it runs! Like dog crap down low would be a good visual.

34 on an open chambered 360 with that cam would be the bottom of the timing range for me. Best thing to do is dial in more timing and see if it picks up MPH. Do that until it stops increasing.