Running badly at low rpm.

[b1k3rdude]

• i had similar probs .... did all the sparkplug stuff..... made no difference.....
  
• my scottoiler vacume connector to the inlet stub was cracked letting in air...... check all your vacume guage  connector stub caps are sound.
  

• It never is most of the time.
  
• Doh, never thought to ask the OP to check his vacuum stubs!