- Manufactured from heat-insulating phenolic compound for superior durability and performance stability.
- Open plenum layout tailored to tune air-fuel distribution and manifold vacuum.
- Fits standard holley squarebore flange carburettors and intake manifolds.
Optimise your engine's induction performance with the Carburettor Spacer 2" Holley Squarebore Open Phenolic. Constructed from heat-insulating phenolic compound, this open plenum spacer fits standard Holley squarebore flange carburettors. It drastically reduces heat transfer from the intake manifold to the carburettor, preventing fuel boiling and vapor lock, making it an ideal modification for street and strip performance tuning.