MBWorld.org Forums - New with old problems

Recently aquired a 1989 560 sec with 32k miles the car needed aome tlc so i replaced the fuel filter both pumps acumulator new injector seals and fpr blew out the lines changed the uper intake with distributor intake idle valve ezl computer coil plugs wires cap rotor battery "cold start sprayer" wrong wording but any way i did all that still no change when the car starts it will idle originally with lota of smoke and exhaste was plugged so i have replaced the headers and at the moment its open headers but when you give it any gas it will die or bog down dont know where to look thought i had it whipped before even starting it know i dont know wich direction to head so many any advice with similar cases would be appreciated