rob10000 Key Veteran Location: Western Massachusettes
| I'm sure you can, I would doubt they changed the OD of the carb body on the new 91.
If your looking to increase the performance of your Hyper with a carb swap, consider the 60B from an OS 61. It will be easier and cheaper to find right now. I've got 2 Hyper 50's, one stock and one with the #60B. I've found the 60B to be a bit smoother, but really can't see any significant power gains. |