I had to use a bosch type relay ground activated, not too hard to do, and I know you can do it! I have a 10 guage wire from the battery to the Walbro. My computer has a serial port, I made sure to buy one with a serial, and it's been a good investment. If your shooting for anything barely over 500whp, I'd recommend a larger wire to the fuel pump. You won't be able to test anything until you get that USB adapter. You had to order one? They didn't have one at your local RadioShack? SUX! Get'r done! Then go find a good map. You can try using a 2JZ (USDM) fuel map if you don't have one yet, I looked but the stickies are not stickies anymore over on SF. Makes me wish I got 550's instead of 800cc's, lol. People are saying the stock 1JZ fuel rail won't flow enough across the rail to support anything larger than 550's, so I guess it's time to buy an additional injector controllor for my three additional injectors in the intercooler pipes.