Holley EFI - 512-1
Fuel Pressure Regulator Diaphragm; For 1 bbl/2 bbl/4 bbl TBI Pro-Jection Systems;
Regulator Rebuild Kit for 1 bbl, 2 bbl, & 4 bbl Holley TBI regulators. Holley's regulator rebuild kits include everything needed to rebuild your billet fuel pressure regulator back to new. Includes diaphragm assembly, gaskets and rebuild instructions.
- Replacement Fuel Pressure Regulator Diaphragm
- Fits 1BBL 2BBL and 4BBL Pro-Jection Throttle Bodies