Pat, check this site.
http://www.chevytalk.org/fusionbb/showforum.php?fid/72/It is a Chevy performance forum almost entirely dedicated to drag racing issues. I am not a member but I read it for amusement and information. Like all of these forums, it is a mix of crackpot opinions and expert information.
There is a guy whose handel is Ignition Man and he has posted an unbelievable amount of information on the HEI ignitions and how to optimize them. Not only is your question about wiring addressed by Ignition Man but he explains the best plates, weights, springs and vacuum cans to use and how to adjust and modify them for the best perormance in your application.
He is very opinionated about various aftermarket HEI systems, some of which come from, you guessed it, China.
My street rod is a 350 SCB powered '32 Ford roadster and I am running an OEM Chevy HEI with a Crane Cams adjustable vacuum can and mechanical advance spring kit. Even on a mild street rod like mine or a daily driver optimizing the distrubutor advance curve greatly improves performance and fuel economy. My dyno for making these and other tuning adjustments is a long grade near my home. My wife listens for ping and I read the plugs at the top of the grade. It's a crude but effective laboratory.
Have fun!
