Found this online today
There is a media surge in EFI advertising that is luring people toward EFI with promises of big power, simple use and fast calibration time. EFI has advantages in some arenas. Fuel mileage is typically better with EFI, also for people that are not very mechanical, it offers them the capability to have a performance car with less mechanical knowledge required to operate it. So it has its place in the performance community. But sadly many consumers are disappointed by the over promising of EFIs actual performance capability and they ultimately make the switch back to a carburetor and are happier for the choice. At Pro Systems we calibrate them for you (you don't need to build fuel maps, you don't do it yourself) and our carburetors make horsepower. More than EFI. We custom build and calibrate carburetors for vehicles you race AND you drive. You bolt them on and off you go and they are dead on or darn close. We will tell you straight up what to expect and what we expect AND now with EFI systems encroaching on our area of the 700 plus horsepower performance market with these false promises, we feel its time to show who the boss really is.... its time to put our money where our mouth is with a NO EXCUSES guarantee. Here it is... plain and simple.