4 - 2Heat Kills Power—the How and Why Feb. 27, 2019- 4 - 3Carb Size Matters Mar. 27, 2019
- 4 - 5Pressure Testing the “Blower Manifold” Debate May. 22, 2019
- 4 - 6Tuning in the Tune-up Jun. 19, 2019
- 4 - 7Hydraulic Vs. Solid Lifters: the Redux! Jul. 17, 2019
- 4 - 8$40 Muffler Shootout Aug. 14, 2019
- 4 - 9Battle of the Budget Fuel Pumps Sep. 11, 2019
- 4 - 10You're Gonna Need a Bigger Plenum... Oct. 09, 2019
- 4 - 11Big-Inch, Big-Power, Big-Block Manifold Shootout Nov. 06, 2019
- 4 - 12The 440 You Can Afford Dec. 04, 2019