I'm new on this forum but I have been a owner for Decades , My question is I just took apart my 428SCJ and found I had 4ea 428Super Pistons with Lemans C6AE-E Rods and 4ea 428CJ Pistons with C7AE-B Rods 13/32. I have always had a slight vibration at +4K but thought it was due on me trying to drive a 4-Speed. I had brought to nearest machine shop and they said it was not possible and that I would have to re-balance everything. Now I'm not a great mechanic is there a way to use all the pistons by balance to lowest value pistons and change the rods to all Lemans C6AE-E Rods or all C7AE-B 13/32 Rods? THANKS