Edelbrock offers standard main jets for Holley carburetors. These brass jets are threaded, easy to install and replace, and are stamped with the size. When you need carburetor service parts for your high performance Holley, look to Edelbrock, a proven performance leader. INSTALLATION NOTE: Jet hole sizes provided for reference only! All Holley jets are sized by actual flow.
Edelbrock Pro-Flo 4 XT Sequential Port EFI System for 1986 & Earlier Small-Block Chevy engines. The system comes complete with a satin finish Pro-Flo XT intake manifold and 29 Lb/Hr injectors capable of 450 HP with 58 p.s.i. fuel pressure.
Edelbrock Standard main jets. 1/4-32 Thread. Jet #78. Size-0.078in. Quantity-2.
Edelbrock Standard Main Jets 1/4-32 Thread Jet 78 Size-0 078In Quantity-2
Standard main jets. 1/4-32 Thread. Jet #78. Size-0.078in. Quantity-2.
Edelbrock; 12478; Carb; Jet; .078; Tuning; Carburetor; Holley; 94
Standard Main Jet Carburetor Metering Jet #12478 Size .078 (Pair)
Edelbrock, 12478, Carb, Jet, .078, Tuning, Carburetor, Holley,?94
Edelbrock Hdq Carb Components
Carburetor Metering Jet
HDQ CARB COMPONENTS
MeteringJets
{ eo : 3in.}
{"eo":"3"}
Main Jet
