Calibration:4-21P-R12 Holley 4180C-4V E4ZE-9510-Sa E4ZE-9510-YA (Alt.)

MODEL YEAR: 1984 ENGINE: 5.0L
CARBURETOR SPECIFICATIONS

Model: Holley 4180C-4V
Part Number: E4ZE-9510-SA E4ZE-9510-YA (Alt.)

CHOKE/FUEL ENRICHMENT SYSTEM
Pulldown Setting: .205" (SA), .199" (YA)
Choke Cap Identification: #612
De-Choke: .300" Minimum
Choke Cap Setting: 1NL (SA), 2NL (YA)


FUEL INLET SYSTEM
Fuel Level (Wet): Bottom of sight plug

PUMP SYSTEM
Pump Screw Location: #1

MAIN METERING SYSTEM
Enrichment Valve Identification: 25R-609-22
Main Metering Jet (Primary): #622
Main Metering Jet (Secondary): .078"
DISTRIBUTOR SPECIFICATIONS Total Advance @ 2500 RPM Includes Initial Timing

Distributor Part No: E4ZE-12127-EA
Initial Timing (~BTDC): 10
Vac Advance Connected: 36-47
Vac Advance Disconnected: 20-25

PROPANE SPECIFICATIONS (Set in Neutral)

Gain RPM: 20-40
Reset RPM: 30