The 1999 Pop Secret Microwave Popcorn 400 was the 31st stock car race of the 2001 NASCAR Winston Cup Series and the 35th iteration of the event.

[4] Dale Jarrett, driving for Robert Yates Racing, would set the fastest time in the session, with a lap of 23.346 and an average speed of 156.823 mph (252.382 km/h).

[4] Jeff Gordon, driving for Hendrick Motorsports, would set the fastest time in the session, with a lap of 23.272 and an average speed of 157.322 mph (253.185 km/h).

[6] The final practice session, sometimes referred to as Happy Hour, was held on Saturday, October 23, after the preliminary 1999 Kmart 200.

[4] Ward Burton, driving for Bill Davis Racing, would set the fastest time in the session, with a lap of 24.018 and an average speed of 152.436 mph (245.322 km/h).

[8] Mark Martin, driving for Roush Racing, would win the pole, setting a time of 23.263 and an average speed of 157.383 miles per hour (253.283 km/h).