If you’ve seen the graveled parking lot of Carniceria y Taqueria La Flor de Michoacan filling up promptly at 4 p.m. every Friday, Saturday and Sunday with a brotherhood of food warriors -- burly men drawn by the mingled scents of char and sizzle permeating the air -- you might have wondered what that makeshift, smoke-filled canvas tent contained that’s so enticing. The answer is tacos al pastor -- some of the best in Denver. The taco acolytes might occasionally glance toward the television or give a cursory nod to the kid trying to sell bootlegged CDs, but mostly, they huddle around the affable chief who’s tending to a pineapple-crowned spit, slicing off marinated nubs of pork that he slides into griddled, grease-glossed corn tortillas, dusts with chopped onions, cilantro and radishes, and splashes with salsa. All of the tacos here are the best versions imaginable, flavored with undeniable street cred. Taste one, and you’ll find yourself joining the brotherhood.