'86 300E rough take off

[truckerbilly]

my 300e runs great 95 percent of the time. However, when I park after running and then before allowing to completely cool off I restart it, the engine runs very rough almost like it is misfiring or bogging down. That is until I give it some fuel and when the rpm's get up to 3000, it smoothes out. When I go to take off again, it accelerates rough as well (same problem) until the engine cools off some. There is a little oil in the antifreeze overflow. I have recently done a major tuneup. plugs, wires, all filters, etc. without any avail. There is some oil leaks around the engine in various places. And recently it seems to be running a little hotter than normal and this whole problem seems to be getting progressively worse. Any ideas?? Oh it has 248,000 miles