E58 400 plus HP Dart sport build

Who'd you get the HEI dizzy from? I got a generic unit off Ebay and replaced the module and coil with Petronix FF3. Could not be happier with results. Only other thing I had to do was put RTV in a few of the slots on the lower shaft... had oil creeping into the base of the dizzy.
I got the HEI from Southwest Performance Parts - Racing, Street & Off-Road Auto Parts