MSD Chrysler Big Block 426/440 Cam Sync Plugs Make Modern Ignition and EFI Easy 

Bring your big-block Chrysler or hemi into the modern era with MSD cam sync plugs. These plugs bolt in place of a conventional distributor and allow your engine to run modern, coil-near-plug ignition and sequential port fuel injection. These are completely plug and play with Holley EFI systems, but can easily interface with most other aftermarket EFI systems.
Learn more: www.holley.com...