Definately get a vaccum gauge & dwell meter as mentioned before, those tools are imperative to tuning a carbourated engine with points ignition. The points gap should be around .019"(I think old timers used to use a match book to set the points gap

). On the distributor shaft you'll see a hexagon shape(thats 8 sides right?) where it makes contact with the block on the points housing/frame. Also, make sure there's lube behind the block where it makes contact with the distributor shaft. Spin your engine over by hand until the high part of the distributor shaft is opening the points. Set the gap, put everything back together & than start the engine. Open the window on the cap & set your dwell as mentioned before. This picture is of a mallory points distributor but the concept is the same. Hope this helps.