Why should Ford and RAM have all the boosted super truck fun? Hennessey’s supercharged GOLIATH 650 performance upgrade, available for both 2022+ 6.2L GMC Sierras and 2022+ 6.2L Chevrolet Silverados, catapults these full-size trucks to another level. To see the real-world performance gains of this upgrade, we headed to the Pennzoil Proving Ground with a GOLIATH 650 and a stock truck for some comparison.