Will not idle under 1200 RPM but falters and dies. It's still got the miss
at 1200 rpm. Manual fuel pump. Carbs have been completely changed
with no difference, so I'm leaning toward something beside carbs. It does
have a 6al MSD box on it. Would that give any reason for sporatic miss?
As mentioned in original post, this just started within the last 30 days.