its the most dependable dizzy set-up built,..just based off a gm design,..an takin 2 to 3 levels up,....only thing more accurate is crank trigger deals,..an its good to 9,000 rpms an over 65,000 volts from one 10 gauge wire hook up!! wouldnt call it a pile up!The problem with that is in design engineering. GM was the first to place the coil on top of the distrubuter but others tried it too including Honda.
I wont say its any more or less dependable than other ignition systems. They all fail.
I can say Honda abandonded that pile up after only 1 years production ( 92 I think ).
Will it fit the A-body with any available wiper motor ? Can'answer that one.
If you search the site you will see they make a model with a smaller cap (small block size) and external coil. This is the version they recommend for A Bodies. The control module is mounted on the side.