It depended on the engine it was. Eventually the C models and D's had the same engine.
The first few F-100Cs were powered by the J57-P-7, rated at 9700 lb.s.t. dry and 14,800 lb.s.t. with afterburner. This engine was soon replaced on the production line by the J57-P-39 with similar rating. However, most F-100Cs (from the 101st machine and onward) were powered by the J57-P-21, an upgraded version of the J57-P-7. The -21 was rated at 10,200 lb.s.t. dry and 16,000 lb.s.t. with afterburner. This engine provided more thrust at higher altitudes, and increased the speed at altitude by about 40 mph and reduced the time to climb to 35,000 feet by about ten percent.