18,000 orig. mile 318 build

Hi guys! Tomorrow im going to be picking up a 77 Asen 318 4 door 18,000 original mile car. Im getting the car at a really good price for the age and shape its in. Im tryin to find the best bang for my buck performance adders. I know 340s and 360s are a better starting point but this things practically a baby yet. So if you guys have any input id appreciate it. Im not lookin to get 5-600hp just wanna wake it up a bit n maybe play with it on the track a few times.