There was a Code3 midsize pulley(68mm) that supposedly worked in conjunction with the ASP 178mm crank pulley from NeedsWings. I have the Code3, but not the crank pulley. Previous owner of the Code3 stated the combo made 22-23 psi, but I'm not going that route. I'll be switching to a 65mm SC pulley soon enough, so I may have one for sale in the near future. Just a thought. But you will definitely have to work on fueling and tuning.