yeah guys its a 2 peice manifold and the gaskets seem to be good. i replace them not long ago.i am going to ghange carbs on this thing. im gonna take the 2 carbs of my wagon and but them on the nova. if its the carbs it should clear up right then if not. i give up!! oh and DD it starts to turn red about 2 or 3 min. after its fired up.it will run like the devil is chasing it but it still glows.there a joke in there somewhere.lol