- Manufactured from heat-insulating phenolic compound for superior durability and performance stability.
- 4-hole 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 4-Hole Phenolic. Constructed from heat-insulating phenolic compound, this 4-hole 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.