I am referencing a sbc 350 motor here with a gm Canadian 313 intake.  We were bringing the car up in hot laps when there was a puff of white smoke from under the hood then I started getting coolant out of my one header, upon further investigation I found coolant in the exhaust ports of the middle two cylinders on one side of the motor.  I do not have any coolant in the oil, just coming out of exhaust.  Hoping it is an intake gasket, but I'm collecting opinions before I tear into it too much further, and any tips for changing or recommendations on a particular gasket set would be much appreciated.