Hello, I "recently" rebuilt a Ford 9n engine. I put new rings, a new piston (it had a chip where the ring go in),new bearings,new seals,and new spark plug and wires. Its basically a new motor.It ran a little rough so fune tuned the timing and it runs a while lot better, but it blows white smoke. Now this.engine hasn't ran in 20+ years so i don't know if its just part of the "new" parts adjusting or somethig bad. This was a test run so there wasn't any coolant to leak into the head and the gasket is new and i checked to make sure the head wasn't warped(it wasn't). So idk if my mixture is too rich or what so if yall could help it would be much appreciated. Thank you