The attraction to these EFI conversions is how much nicer the car starts up runs at idle to redline. Peak power generally the same as a well tuned carb but If I Had the $$ Id run one. Gear heads like to try new things. Cant look at FI necessary as a fuel saver because of the high cost to convert but looking at is a nice fun upgrade in manners is the attraction. At my age and the age of everyone here it sounds fantastic to have an old muscle car with the reliability, ease of driving and manners of a new car.