Archeops is a beast, and the main point of Archeops is the hit hard, and hit fast.
Archeops (Any gender)
-Ability: Defeatist (Deal with it, you have no choice)
-Item: Flying Gem
Acrobatics - STAB and Flying Gem Boost = App. 124 Base Power (The Flying Gem activates before the move is used, so that's how you get the boost. After the Flying Gem is used up, Archeops can still hit hard with Acrobatics)
Steel Wing/ U-Turn = 70 Base Power (Though it's not much, steel wing can sometimes boost your defence, and U-turn can make for a quick exit)
Rock Slide - STAB = App. 113 Base Attack (Great move, and will often make the target(s) flinch, since Archeops is likely to go first. Also a great help against ice types)
Earthquake - 100 Base Power (How does a bird create an earthquake I do not know, but this move is awesome with Archeops. Great type coverage: Steel, Electric, and Rock. Three opponents of Archeops.
As for Ev's max out Attack, and Speed, since your going to be mostly using them. The rest can go into HP and the Defences.
Hope this helps!