hi so i this problem is getting worse but im not sure if i can say ts a misfire.

i changed the condensor with new one no help i happens while im driving feels like its cutting out and it seems to backfire from the exhaust and carb every know and then.

i thought it could be blocked jets i checked them all even idle jets and its all clear fuel bowl is clean so is the filter.

it more if im accelerating or driving constant speed will be smooth then from no where car will jerk like a misfire?

any ideas?

Thanks!