FAST XFI Fuel Injector Harnesses feature clearly labeled Weather Pack connectors and plug into FAST™ XFI™ Main Harnesses to designate your engines specific firing order.
Injector Harness Part Number 301201- 4/7 Swap
Minitimer Injector Connectors
4/7 Swap Firing Order 1-8-7-3-6-5-4-2 - works with:
Gen I Small Block Chevy/GM - With 4/7 SWAP CAM
All Years Big Block Chevy/GM - With 4/7 SWAP CAM
*All harnesses will also work with the original "Classic" FAST™ Electronic Fuel Injection.