Fitted the electronc ignition a few weeks ago - been running nicely on the drive, but in last few days, been getting a 'stutter' every minute or so when she's warmed up.
Thought is was vacuum tube so fitted a new one. No change.
Went for a drive this morning. Started off OK but then got a misfire at idle and acceleration. Got home OK - been fiddling and fettling but no joy.
Stuck the points back on roughly (set by eye). Running perfectly.
Can't send the electronic module back as a) I had it for 20mths before fitting and b) I hoiked it 50yds down the road and it may be a little damaged......

It was a Powerspark SimonBBC module. Yet again, I seem to have got the duff one (had a similar issue with Land Rover ones in the past when they get warm).
Will set the points up properly in a bit.