Tuned properly they're a good carb. The only fuel regulator i used was an old Cagle fuel regulator. I don't think these are still being made,but there are others on the market. I would get one that operates off of a vacume signal. I did have problems on extremely steep climbs with flooding if i didn't stay in the throttle. I would save up another 4OO $ or so and get a Howell set up.
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