Grrrrr back to running rough again
Revs up but misfiring and bogging down again
Swapped fuel pump no better
Distributor removed examined refit and timed up
As a last resort tried on the grottiest looking carb ever,one of the polish Weber copies, unbelievable runs perfect nice tick over revs cleanly and holds constant revs at any speed
So I have no idea what is wrong with the original carb