I think you should get a lonely ... Lonely highers atk and lowers def ... it will be good to higher atk because the best moves for infernape are: Close combat, thunderpunch, flamethrower and counter ( since you have low defense a physical atk will do more damage and counter will do DOUBLE the damage to the opponent when it uses a physical attack). also try to get a chimichar with perfect IV. you can find the calculator on serebii.... Hope i helped!