Friend of mine put it on his '73 Ford pickup (351W), loves it! Driveability is superb, and it "learned" his engine in about 25 miles driving....He sez fuel mileage and power are both improved. I know prior to placing the order he spent some time on the phone with the FAST rep getting all the good info on how to make it work right.
I've been chatting with them a bit about running the dual throttle body system on a tunnel ram...... just too old to spend all my time tweaking them dang Holley's everytime the temp changes 4 degrees or the sun goes behind a cloud!!!!