I don't see any reason why that wouldn't work well, especially if you modified the slot (in the distributor mechanical advance mechanism) for mechanical advance so that it was limited to about 8 crank degrees. That would enable you to set ten degrees initial, for easy starting.
That setup would provide the 18 degrees mechanical you'd need for boosted power, and a lot more, once the vacuum advance kicked in after the boost goes away, for cool-running and better fuel economy.
