In Reply to: Baby has the Shakes:( posted by Smokey on March 22, 1999 at 22:27:35:
It is said that the M30 is rather sensitive to valve adjustments. A slightly tighter than spec setting will negatively affect idle characteristics.
Were your valves set with the engine stone cold? That is the recommended method to ensure correct gapping. Go looser than the manual states, that is, gap at .013" or .014" instead of .012".
Just a thought....