you need to fine a dyno shop in your town. most places that have dynos have techs that can tune the cars whether it be efi or carb. ultimately efi is great for daily drivability, cold starting, weather changes, etc. but if your tuning a weekend cruiser or your street strip car and trying to get out of it by going to efi then its definitely going to be an even bigger headache than a carb. there are alot of adjustments with efi, granted they can be tuned with a laptop but if one number is off it can throw off your whole curve.