Skip White distributor... Only "1 sold" on eBay (?)
Don't care for the failure rate of pertronix drop in modules as they tend to over heat and burn. Too many customers returning for a failed unit. I usually recommend MSD Billet distributors or The GM style HEI ignitions work great and parts are easy to get. DUI (Davis Unified Ignition) makes some good stuff I have used and can vouch for.
http://performancedistributors.com