85 4runner 22re im just gonna list the symptoms, im assuming there is more than one problem occurring but any suggestions are much appreciated.
-oil leaking (looks like its from the front of the oil pump)
-misfiring
-a lot of blow by
-dies at idle
-over heating
I replaced the seal and o ring in the oil pump, and also added the little sleeve that came in the kit. forgot to lube up the seal but i dont think that would cause this much leaking. i also put in all new spark plugs and checked under the distributer cap for any corrosion. thanks in advance to any answers!

*one more thing, it is not blowing out white smoke im 99% sure that it does not have blown head gasket.