Holley EFI Dual Sync Distributor SBC/BBC

Introducing the next generation of Holley EFI Dual Sync Distributors, the new design features an improved shutter wheel, high-quality dual Hall Effect sensors, and an MSD cap and rotor!
 
While these distributors are designed to be used primarily in sequentially injected installations, you can easily use them as a crank trigger for TBI system also. The precision machined shutter wheel design ensures accurate timing, even at very high engine speeds. The Black anodized Gen 2 Dual Sync also included a QPQ coated shutter wheel for superior corrosion resistance, and the wheel has been pinned and welded to the shaft for increased reliability. These distributors can also be used with other EFI systems that support Hall Effect crank and cam sensor inputs. Do you need to a bronze gear for your billet cam? No problem, these distributors maintain MSD shaft diameters, making it easy to source a bronze gear!
Features:
Plug and Play with Holley EFI and Sniper EFI with adapter harness part number 558-493
Includes both crank and cam sensors to support sequential EFI operation
Hall Effect sensor design provides precise timing control and noise immunity
Black anodized CNC machined billet aluminum housing provides superior strength and great looks
Integrated LEDs allow for easy setup
Available for popular applications
Comes with iron distributor gear
Precision machined shutter wheel designed for improved accuracy at extreme engine RPM
Shutter wheel is pinned and welded to distributor shaft for superior reliability
Blank cap available for Coil-On-Plug applications
Compatibility
1955-1986 Chevrolet Gen 1 Small Block
1973–1977 Buick Century
1975–1979 Buick Skylark
1978 Buick Lesabre
1977-1980 Buick Regal
1955-1981 Chevrolet Bel Air
1955-1972 Chevrolet Townsman
1955-1972 Chevrolet Nomad
1958-1975 Chevrolet Biscayne
1969-1986 Chevrolet Blazer
1967-1986 Chevrolet Camaro
1966-1986 Chevrolet Caprice
1964-1977 Chevrolet Chevelle
1963-1968 Chevrolet Chevy II
1963-1968 Chevrolet Nova
1957-1986 Chevrolet Corvette
1958-1985 Chevrolet Impala
1959-1986 Chevrolet El Camino
1965-1986 Chevrolet C10/K10
1965-1986 Chevrolet C20/K20
1965-1986 Chevrolet C30/K30
1960-1962 Chevrolet C40/K40
1967-1986 Chevrolet G10
1967-1986 Chevrolet G20
1967-1986 Chevrolet G30
1970-1986 Chevrolet Monte Carlo
1975;1977-1979 Oldsmobile Custom Cruiser
1975 Oldsmobile Delta 88
1977-1979 Oldsmobile Omega
1978-1980 Oldsmobile Cutlass
1975;1983-1986 Pontiac Bonneville
1975 Pontiac Catalina
1975;1978-1980 Pontiac Grand AM
1975-1976;1978-1980;1983-1986 Pontiac Grand-Prix
1977-1986 Pontiac Firebird
1977-1980 Pontiac Lemans
1975;1977-1980 Pontiac Grand Lemans
1977-1979 Pontiac Pheonix
1977 Pontiac Ventura
1977-1979 Pontiac Pheonix
1983-1986 Pontiac Parisienne
1978-1979 Pontiac Sunbird