Holley EFI J4 Connector & Harness 41011010 Gauge kit includes 1/8” NPT

Gauge kit includes 1/8” NPT temperature sender

Express / Savana

Includes hose barbs

Tempered A356

Holley EFI J4 Connector & Harness 41011010 Gauge kit includes 1/8” NPTDominator EFI Connector J4 Auxiliary Harness Holley is quickly becoming The New Standard In EFI! Holley's HP ECU is standard equipment on the 2013 2014 Chevrolet COPO Camaro and Holley's EFI throttle body powers every NASCAR Cup Series team. Top racers are making the switch to Holley EFI every day. Racers like Tom Bailey who set three new records and took the overall event win on the 2013 Hot Rod Magazine Drag Week and John Scali who used it to win