How fast does a 99 Toyota pickup run not stock?

The speed of a modified 1999 Toyota pickup can vary significantly based on the specific modifications made, such as engine upgrades, suspension enhancements, and weight reduction. Generally, stock models have a top speed of around 100-110 mph, but with performance modifications, it's possible to achieve higher speeds—upwards of 120 mph or more—depending on the extent of the tuning and aftermarket parts installed. However, it's important to note that modifications can affect reliability and safety.