Distributor for Boost

I am looking to set up my distributor for boost. I am un-hooking/removing the vacuum advance and am going to use initial timing for start up and then light weight springs to bring in total advance by 1800 rpms. I know 28 degress of total advance is a good starting point for boosted engines. What should my inititial timing be and how do set up the distributor to be like this? Does anyone recurve distributors?

I do not want to run a programmable ignition and I am looking for 6 lbs of boost for the time being.