[DanEC]

As long as the distributor has not been modified to greatly limit the amount of centrifugal advance so that a large amount of initial advance can be dialed in (like 18 or more) - the vacuum advance should work out fine. Be sure it's hooked up to a full time vacuum port on the carb (one pulling vacuum from below the throttle blades). The only drawback I've experienced with vacuum advance units is sometimes the engine head design, compression and cam will not tolerate a vacuum can that pulls in a lot of advance and you can get a light trailer hitching action (light missing) on the highway in high gear from too much total advance. In this case you may have to find a vacuum can with less advance or cobble up a limiter to restrict the amount of vacuum advance in the distributor.