74 dart vibration problem.

There should be no engine balance weights on the converter at all on a 318. There could be some thin sheet metal type straps welded to the outer edge for fine tuning the balance due to imperfections in the manufacturing process, but that should be it.
I hear ya but that's what the trans guy said. Said there was one weight on it and when he spun the converter it was 40 grams off. He put another counterweight next to it and it's much better. The second weight was put right next to the existing one.