I'm not here to make a quick dollar. It's extremely difficult to work with half the data and half the story. When I started with efi calibration Remote tuning was not even possible. Over the years I have seen a thing or two, and this is why I must see the vehicle firsthand. I do offer remote calibration and tech support to all my customers after the first on-site service.

The short answer. Give the engine what it wants. The data will tell you if it worked or not Test, make changes. Test, make changes. Wash rinse repeat. There is no such thing as a magic number for dialing in fuel and timing. Every setup is different.

Every harness I build starts with Pre-Terminated J1A / J1B 15' Flying Lead Main Harness from Holley. $380 just for that. Then add connectors, seals, terminals, loom, and shrink-wrap. Want connector boots? Does your application dictate the use of Tezfel wire? How complex is the layout? Installation concerns? This all adds up to the final cost and depending on needs, options, and difficulty the final price varies greatly. It is time and materials. If cost is your first concern. I am probably not who you are looking for.