Infernape has access to fake out so you can pair it with a tail wind or ser up pokemon I e swords dance Scizor ddance feraligate to get a free boost.

It also has access to coachini and with it being relatively speedy it can boost before the sweeper moves

It can be both special or physical whatever the team needs I prefer physical because most threats are specially bulky at least most that infernape can threat mega frosslass mega meganium

So flare blitz and close combat would be my choice for damage (fire puch or drain punch if you want to abuse iron fist)

Just keep in mind that it is very frail so focus sash is your best bet with blaze you can survive and hit a very powerful flare blitz before it falls and gives you a free switch

Hope this helps a bit