Holley EFI Throttle Position Sensor - 2 bbl. TBI (502-3/502-4/502-5/502-6/502-7/502-8) 4 bbl. Pro-Jection (504-1/504-2/504-11/504-12/504-13/504-21/504-23) YA0813 GM A-Body / F-Body /

GM A-Body / F-Body / X-Body 1966-74

#359300 manifold height: 6

4 AN Female to 4 AN Male

typically had to go to suppliers on the West coast for up to date racing components for their race cars

Diaper Pin

Holley EFI Throttle Position Sensor - 2 bbl. TBI (502-3/502-4/502-5/502-6/502-7/502-8) 4 bbl. Pro-Jection (504-1/504-2/504-11/504-12/504-13/504-21/504-23) YA0813 GM A-Body / F-Body /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 the 2013 JEGS All Star race. But that's not