She still surges at about 1k-1.5k rpm, I've replaced the cap, rotor, wires, plugs, fuel pump and filter, cleaned the throttle body but made no adjustments to it.  What's next?!  She runs great at full throttle but jumps a little at idle and wants to die at the mentioned rpm's.  Oh yeah, also won't stay running when cold 'til temp. is all the way up.