Can anyone suggest what is wron with my car. When I first start it (it takes 2 to 3 times to start) it runs real rough. Once I drive it for 5-10 minutes, it runs great. 1989 tubo original 75,000 miles.

first thing i would suggest is doing a diagnostic and see if you get any codes
most likely you have a boost leak or your air flow meter is playing up

do a diagnostic and let us know what codes ya get :)