When your car starts making a metallic knocking sound under the hood, you'd assume it could only be one thing: the engine. However, there are two common culprits, and they're definitely not the same.

We arent going to kid youthe Holley Strip Annihilator ignition, as its name implies, isnt for the average guy looking for a hotter spark for better cruise night shenanigans. Its a serious drag racing ...