Just wanted to drop a quick update on the FAST EZ efi "Fuel" handheld upgrade. I haven't taken the car out on a drive yet, but it comes in super handy now that all of the ratios and info are all on 1 screen (no need to scroll through different screens. You can also adjust more of the fuel options (Cold start, accel fuel and cranking fuel), which I plan on using this weekend. So far, its a pretty good 300.00 investment :0) Was really just plug and play