FWIW, I did not get a balance card with my Butler kit in late 2022. I was expecting to get a sheet with the weights and matched pairs of pistons, rods, ring packs as well as the location to install them. The rods had clearly been opened and inspected but they weren't labeled or numbered in the box. I'm not sure the pistons were opened and inspected, but they did come with a sheet from Ross that had the weight of each piston. The crank had been worked on as well and had my name written on it (rod bearing clearances were spot on).
I suppose the parts could have been individually balanced close enough to each other to where it didn't matter where they go (seems unlikely given what I've learned about balancing since), but I would have at least liked to have seen the proof. In hindsight, I should have given them a call, but it seems to be running fine.
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Ken
'68 GTO - Ram Air II 464 - 236/242 roller - 9.5” TSP converter - Moser 3.55 Truetrac ( build thread | walk around)
'95 Comp T/A #6 M6 - bone stock ( pics)
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