Appreciate the honesty. We have just been on clones/predators and starting to build some opens that no longer have to run stock appearing carbs, was thinking about robbing a WF carb from my sons junior program to use on one of themDepends what you consider better.
The slide carbs are (WF, Mikuni etc) are very simple and very easy to maintain,
If you compare them with any other carb of equal size they can make just as much HP as a diaphragm carb. I'm not picking on the WF carb. It works very well but be aware that a 26 mm WF carb is 26 mm where it bolts to the intake manifold but in the oblong venturi area it is considerably smaller.
A 24 or 28 mm Mikuni flat slide will flow way more air than a 26 mm WF carb because it doesn't have the restriction or venturi area that many other carbs have,
Sounds like you just need to throw some more gear at it, when in doubt rap her out. Seeing as you didn't build them they may not have the right cam for small track or not enough compression, too much carb or plethora of the aboveI've got a couple of Animals, one is a pretty good limited modified motor with a 304 Tilly, the other has a bit bigger valves, uses a 28mm Mikuni, has adjustable flywheel and is just a bit stronger. Both have stock rockers. I bought both and haven't personally worked on either. From my limited experience with them my concern is that on small tracks neither is real strong when accelerating from off throttle but exceptionally strong once rpms pick up. So small tracks are their weakness. I don't mean to hijack your thread, just interested in the responses you get.