One 100 g serving of pastrami, beef, 98% fat-free has 95 calories, 1.5 g of carbs, and 0 g of fiber.
Full macro and micronutrient breakdown, plus how this compares across diets, is on the Pastrami, beef, 98% fat-free nutrition facts page.
Source: USDA FoodData Central - SR Legacy (2018-04)