1987 bonnie running rough after sitting..

I just recently got a 1987 bonnieville LE from a friend and it ran perfect tell they parked it due to a title issue and change of ownership well anywho it has been sitting for 2 and a half months and just started and driven for the first time about 2 days ago...it seems to be running 100 better than it did when I first started it but it's still idles really rough and acts like it's not getting gas when you first go to take off from a dead stop....once I get going I can cruise at like 70 80 or even 90 with no problems just glides a long....getting ready to change plugs and plus wires and oil...anything I should consider picking up while I'm at the parts store?

Thanks