I'm working on tuning my car. I cheeped out on injectors, and now more than ever might be regretting it. Bought 80# injectors off EBay with no data sheet, so I'm using the Ford Racing data in the tune. The ones I bought look like Siemens knockoffs, which look I the style Ford racing uses, but not sure. I'm going to try to run the car this week with the SCT transfer and clock the MAF different ways to see if it changes to close to right. This car is also return fuel now, so fuel pressure is different at different areas. One reason I think the injector data might be wrong is how much fuel I've had to pull for start up return less or return.