My ERST has started to slightly kangaroo on light throttle and the tickover exhaust note misses every so often?

The car is still MFI and has recently had new distributor, cap, plugs, leads. I've had the idle CO and timing checked yet the chunky running still persists.

any ideas?!

cheers.

 

Take it to a specialist who knows what they are doing.

 

Oh its going next week, I was just wondering if its a symptom caused by a certain fault that can help with the fault finding?