We upgrade the distributor in our Chevy big-block by swaping out the old HEI with a new one from Davis Unified Ignition. Follow along and see how simple this swap really is. Only at www ...

After tackling an EV swap, Project X, HOT ROD's long-term 1957 Chevy project car, is getting something completely different: a 1,000-hp ZZ632 crate engine!