: This is an emerging competitive category in diesel and street truck racing where builders optimize vehicles for specific speed brackets, often involving extensive EFILive tuning. 4. Conclusion

: Popularized by racing media, "sleeper" trucks maintain a rusty or stock exterior while hiding massive engines, such as 632 cubic inch big blocks capable of staggering drag strip times.

The Evolution and Engineering of the High-Performance "Fast Truck"

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