i have a 2.0L 94' ford probe and i just bought exhaust header and i dont know any torque specs and does anyone got any tips i never done headers before,... ill take any help i can get, thanks

Most if not all repair manuals will have torque specs in them. The library is also an excellent source of info. Maost will have complete Chilton and Mitchell repair manuals in them. The torque spacs for exhause manifold bolts are 12-17 Ft/lbs and the exhaust manifold nuts are 14-21 Ft/lbs.