[marvgarr68]

DreamRyder that dist is much the same as the one in your corvair if that helps. Only difference is the two line vacuum adv and the dist drive. Maybe you can see what is wrong I Know on my 62 monza I had dist problems all the time replaced it never had a problem again. Now to check the adv unit get a vacuum pump one of the hand held ones. Hook up to the outer line on the adv unit and start sucking if it moves its ok. Now check the back line if it moves its ok. If this test is ok and the timing is still ok I would 1st check the carb maybe base gasket blew out. Did it back fire at all? Take off the carb clean it up and replace gaskets plug all the vacuum lines except the two lines to dist. Replace the vacuum lines also see how it runs.