I go EFI if given the choice. The biggest issues we run into is rules between carb and EFI. We can run a 48IDA or even a 50DCOE w/42mm chokes on any manifold or we have to run the entire stock intake system with any stand alone. The RPM's we run cause trouble with the stock intake runner lengths and the IDA set up is better above 8000 rpm. I'd rather be looking at number values on a laptop than a box of jets and e-tubes etc.
If you like to tinker with electrical stuff instead of carb stuff a Megasquirt can be set up very cheaply with almost all stock parts. The stock injectors on an FC will feed 250hp no problem. If you are running on the street the stock manifold is pretty good for driveability, how much time do you spend above 8K on the street anyway? Maybe half the time at most
