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I went with the Tman 555 Torksters for my 2012 FLTRX. The specs are almost identical to the 37's but they have more lift which I anticipate will help with the newer, better flowing head characteristics these have over the older heads the 37's worked so well with.
For what it's worth I bolted in a Andrews 37 in a friends 07 Streetglide and cause the gearing was off a little for that cam it was a little soft on the bottom. Since they have changed the gearing and you have a 103 engine the 37 would be ok but I still prefer the 204 over the 37. I've had a 37 also in a 95" with the comp set at 9.8 and it was ok. I guess I'm sold on the 204 for a bolt in cam though.