Was anything wrong with it before?
In general car just don't seem to like sitting unused for long lengths of time, but with it being summer (haha) you might be OK.
Watch the oil pressure on start up. It might be worth cranking it over with no fuel supplied and the plugs out. Keep an eye out for any leaks (fuel tank area or coolant hoses, especially on the back of the engine, check you rad level and then again a couple of times over the first few days as those leaks can stay well hidden)
Try tightening all your jubillee clips incase any have gone loose over time.
It might smoke abit, if it seems to run fine, go for a run to warm it up and slowly give it more beans to check for any misfires, poor brakes before you floor it to see if it realy is OK.