^^ThisHeaders depending your goal with it . No matter what headers are needed IMO
^^ThisChange the lower intake manifold gaskets with the improved version if they have not already been replaced.
^^ aaannnndddd This.It would probably be helpful to know if you're a mechanic, never touched a wrench, etc.
And goals for the car. Do you want it to be pretty? Sound good? Handle well? Go fast? Be reliable?
Is there a budget?