I am set up with cyl base spacers so I was running about 105 hp , I have had the big bore now for aprox 250 hrs , I like the kit very much .. I am not a big fan of the carbs for this same reason I installed the Electronic Fuel injection also from edge , now I am in fact around 115hp … if you have the 912 ul I recommend the big bore if your set up with the ULS I would save up for the EFI
That thing REALLY WORKS !!! Dont install that flimsy cord bungee, go with this instead and forget it for ever. No more worries with a bungee failure. My new airport has a turf runway and it is a lot bumpier than a normal asphalt runway but the Steel bungee takes real good care of all those bumps. It never got overwhelmed. If I had to do the modification over again, I would ! Actually, I would install it form the start of the build.
My 2 cents.
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