Oldsmobile V8 Dual Sync Distributor Pro-Billet Dual Sync EFI Distributor Fits Olds 260, 307, 330, 350, 400, 403, 425 And 455 MSD IgnitionWhile these distributors are designed primarily for use with sequential fuel injection systems that support Hall Effect crank and cam sensor inputs, they can also trigger TBI fuel injection systems. The precision machined shutter wheel design ensures accurate timing, even at high engine speeds. If you've converted to a coil per cylinder ignition system, we offer a great looking blank distributor cap to save space and eliminate the unused cap and