Holley EFI LS1 Main Harness for HP EFI & Dominator EFI R010015YXL TH350 / 700R / 200R4

TH350 / 700R / 200R4 Transmission to GM LS-Series

Ideal for Use w/ After-Market Pedal Systems That Don't Have A Brake Light Switch

- 32 Spline to 4-Bolt Flange - SB Chevy / Mopar SRC-2355-32 at low everyday prices

nail shift points and improve launch consistency

Water Pump Seal Kit

Holley EFI LS1 Main Harness for HP EFI & Dominator EFI R010015YXL TH350 / 700R / 200R4LS1 6 Main Harness for HP EFI and Dominator EFI 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