S.R.S Performance ignition advance kit, CNC milled from 6061 Alum. Includes all hardware and instructions. Requires modification of stock coil mounts. For all Predator, Honda and Clone SMALLBLOCKS. Over 15 degrees of advance or retard over stock - Easy to see timing marks. The Perfect kit to maximize the power curve of your engine. This kit does NOT contain the coil. To add a S.R.S Lighting Pack coil, purchase separately.