Started my 347 up but major problem!

not to go overboard on the on your leak, but a friend and I built a 327 chevy(i realize not quite the same deal) but the intake he used was brand new. it seems that it came from the factory with a bad cut where the housing bolts and would nevers let it set. played with it for a week, sent the intake back, got a new one (one shot---one kill) just food for thought. good luck