Sound like the tappets are tight and you need to readjust.
Was the head skimmed?
Have you put it back to where it was previously?
If you can get it slack on number 3 then the others should be able to do the same so tight tappets. Maybe holding a valve or 2 open which may explain why it splutters and try’s but won’t quite get there.
J
Was the head skimmed?
Have you put it back to where it was previously?
If you can get it slack on number 3 then the others should be able to do the same so tight tappets. Maybe holding a valve or 2 open which may explain why it splutters and try’s but won’t quite get there.
J