I took a closer look at the OVP today and found that not only was it pushed deeply into the compartment with the bracket removed but the protective cover for the 10A fuses was gone. When I took it apart I found alot of corrosion so I will be replacing the unit tomorrow. Hopefully that will solve the stalling problem. As for the slow starting, I adjusted the Mass Airflow Sensor Plate which solved the problem. It now starts right up but there is still a slight fluctuation in idle. I will look into the catalyst as well since the valve job was indeed performed to repair leaky old valve seals. Thank you all for your input, I will keep you informed...