They are precision machined from 6061-T6 billet aluminum for strength and durability and feature a black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks.
Features:
EFI regulators are adjustable from 40-100 PSI base pressure
Carbureted regulators are adjustable from 4 to 9 PSI base pressure
Compatible with gasoline, methanol and E85*
Designed for use with the Holley VR1 and VR2 Brushless in-line fuel pumps
Can be referenced on a 1:1 ratio – includes a barb fitting and a -4 AN fitting for reference connection
2 port regulators feature a 10 AN O-ring inlet/outlet and return