Why not make your own...I made a couple with no problems. You'll just need someone to flash the pcm.Here is the site I usedhttps://lt1swap.com/wiringharness.htmThat's a TPI harness on my wall...I use it as a reference.
Don't want to hijack this thread but sorta the same subject. Yes, fuel injection requires a learning curve. How deep you want to get into it is up to you but the more you learn the simpler it gets. A wiring harness will only plug in one way (unless you use a hammer) so keep plugging things in until there are no more dangling plug and you are done. I think the hardest part is the fuel system. Need a pump that will deliver the required pressure and a return line. Most, if not all, have a family car or truck that has FI. Cold mornings start the car, pull it into gear and off you go. No stumbles, dies or backfires. 5000 foot altitude change, no problem, regular gas and just about never change plugs. New tools required such as a noid light and fuel pressure gauge (0 to 100). No dwell meter, no timing light. Code reader $5 on your phone. Argument both ways but I find FI to be less of a hassle.
Stats Of Website