Martin, I got their kit for the small block Ford (302). If you use vacuum, you need to plumb the manifold. I sent my setup to Ian of CAV Canada, who did a fantastic job. Turns out, I had to tune without dizzy vacuum advance, but still needed the tap for brake servo.
The stock setup they had was way too rich. Good thing they send a jet tuning kit and synch meter. I had to drop the idle jet 2 sizes, and eventually changed the chokes from 37 to 40mm. Runs quite well now. Nothing like Webers. The look and growl alone are worth it.
