Yep it's really well made. Its like a "Po Boy" MSD. Gonna run it in my 67, and in my sons 69. I hollowed out the ballast resistor and soldered in a jumper wire in it. This way my ballast resistor is the jumper wire while appearing stock, and if i ever decide to put it back stock i just put a real ballast back
Wish I'd thought about using the GM HEI on my 58 GMC Apache before splashing out on an MSD unit. Also I can see you can easily carry a spare HEI module on board, much cheaper and smaller than an MSD.