Hopefully this is the correct spot for this question. Im thinking about possibly investing into a Pro EFI standalone system once I put my car back together. Looking for anyone that has personal experience with standalone sytems. Im in the process of doing a single turbo setup on my 04 cobra and my goal is 750rwhp at MINIMUM!!! on pump 93 octane. I was just figuring since Im shooting for 750+rwhp on pump gas a standalone kit should do a better job then the factory ECM as far as fuel metering and what not. I already had a bad experience with my last setup and tune that was on the car. I had a Procharger F1a pushing 22lbs and ended up burning a valve and it actually broke apart on cylinder #2. I DO NOT want something like this to happen again, especially since I just bought a 5.0 stroker and kit and plan on having my heads sent out for cnc porting and upgraded valves. Also another thing,,what all does the stock ECM control then? Im here in PA so as far as Emission testing goes, we still have to hook up to the OBD 2 port and it needs to communicate with the Emissions test. Hopefully this isnt too vague of a first post for you guys. Thanks for any help..