I am trying to figure out if I should ditch the UFOs that I have in my sled or keep working with them. Could anyone with experience with them let me know what you think on the following:

1. Did you get them to work without frying a piston?

2. Did you actually see any improvement?

3. Do you still get reasonable fuel mileage?

4. Have you seen any reliable dyno testing backing up the claim of an additional 1 HP per 100cc or even close?

Thanks

I've heard grwat reviews from everyone. But everyone also said they were a a hassel to set up and time consuming with all the testing,etc. But once dialed in they make a big diff. Some sleds seem to like them better than others also.
Caleb

personally i have them in my 96 xcr600 and i didnt notice much if any diff. except going to the parts store and buying such small pilot jets and the guys said what are u doing with these... i think it was a lot a money and time for nothing... thats my .02cents