Thanks everybody. I appriciate your help. The problem is fixed.
Yes the mixture was too rich. I adjusted it and it is back to 50% now. It is just that I had to turn it about one turn and a half to get the proper reading. I was hesitant to turn it more than a quarter of a turn at a time before. I must have really screwed it up few weeks ago when I was trying to troubleshoot the system.
Thanks for the clarification Steve. I did miss-read the manual. I was pressing the Air Flow plate to see a change in the resistance. I pressed the throttle and I did get zero ohm on the switch.
Thank you all again. You guys are great. The car is running very smooth now.