D.U.I. Distributor... Who's Using it?

A D.U.I. is basically a G.M. hei one wire ignition with whatever body/shaft combo fite your engine . It is a really good idea that doesn't work well in Mopar world due to fitment issues . the large cap gets in the way especially in A-bodies . I would consider a Petronix Ignitor III , it is a one wire hook up with no ballast resistor and the rev limiter is inside the cap . the upper half is standard gm and parts can be had anywhere . Also, the advance is adjustable . Why didn't I think of it years ago ?