Piston disc brakes, an upgraded transmission, and axles help control this big block after they upgrade the cylinder heads, intake manifold, headers, and install a new Holley carburetor.
![](https://altdriver.com/wp-content/uploads/sites/2/2016/08/66-hell-wagon-gets-huge-upgrades.jpg?w=1056)
Piston disc brakes, an upgraded transmission, and axles help control this big block after they upgrade the cylinder heads, intake manifold, headers, and install a new Holley carburetor.