So, My carbed, cammed, malloried 2056 has been steller for about 6k miles. Then on a run up to Santa Rosa it started feeling less "crisp" on acceleration, and is popping out the tailpipe when cruising along. Not loud bangs, kinda softly doing it. Getting also a bit of snorting out the carbs on start up. Going to crawl under today and check for exhaust leaks (SS exchangers).
What else should I check?
Valves?
Timing?
Ignition circuit?
Also, as an engine wears in and you start putting some miles on it, can it change in such a way that would require re-evaluating your jetting?