HVH Super Sucker Plastic Carburetor Spacer - 1 in Thick - 4 Hole - Dominator Flange - 1250 CFM Carburetors Mechanical Oil Temperature Gauge The Boost Timing Masters allow

The Boost Timing Masters allow you to adjust the amount of ignition retard from 1 per pound of boost to 3 per pound via a control knob that you mount on the dashboard

Plug and play compatible with more Holley EFI accessories such as

DESIGNED TO PERFORM - Fixture checked to ensure a precise fit for quick and easy installation

Example: MAP Sensor information for the ECU - Calibration/crucial information for the ECU

HVH Super Sucker Plastic Carburetor Spacer - 1 in Thick - 4 Hole - Dominator Flange - 1250 CFM Carburetors Mechanical Oil Temperature Gauge The Boost Timing Masters allowProduct Description: Carburetor Spacer Super Sucker 1 in Thick 4 Hole Dominator Flange 2. 125 in Bore Diameter Plastic Black 1250 CFM Carburetors HVH High Velocity Heads has been porting high performance cylinder heads and intake manifolds since 1970. HVH has over thirty years of head porting, head design, intake porting and intake design along with carburetor spacer design experience. Originally HVHV only worked for NASCAR Winston Cup teams, doing