EVs: 24 Atk / 232 SpA / 252 Spe
~ Work Up
~ Fire Blast
~ Close Combat
~ Stone Edge / Hidden Power Ice
Yea Yea, more Work Up sets, but this one has more viability than Hydra. This set works alot like Work Up Virizion, force a switch and get a free Work Up. However, Infernape has better mixed attacking stats (104 > 90) and great STABs resisted by only 5 OU Pokemon. (Latios, Latias, Tentacreul, Jellicent, and Gyarados) Fire Blast is used over Flare Blitz because it hits physically defenseive Pokemon (Gliscor and Conkeldurr) harder. Close Combat is used because Focus Blast sucks (and you know it's true). The last slot is up to teh user, Stone Edge is used to nail Gyarados and Volcarona, as well as keeping coverage agaisnt Salamence and Dragonite. Hidden Power Ice can be used to wreck Salamence and Dragonite, as well as hitting Haxorus harder.
The EV Spread allows Infernape to OHKO the standard BU Conkeldurr with a Fire Blast after a Work Up. It also OHKOs Gliscor after +1 as well. Max Speed is used to Speed Tie with other base 108's such as other Infernape and Terrakion, with a Naive nature so it can take Scizor's Bullet Punch better. Finally, the remaining 24 EVs are put into Attack to ensure so that Close Combat and Stone Edge do more damage.
Support for this set includes a way to take out the 5 Pokemon taht give Infernape trouble. Entry Hazards and Dual Screen support also work wonders. Last but not least, Thunder Wave support to screw over Latios, Latias and Tornadus are also key as all 3 can outspeed and OHKO Infernape with their STAB attacks.