I never had a problem with my weber with the stock pump and no regulator, but I put a filter with two outlets on and hooked the fuel return to one and the carb to the other larger one. The local parts store had a filter with the right inlet and outlet for the main line to the carb and a smaller line out to hook the return line to. Stick one of those up at the carb and you shouldn't have to worry at all about overfilling the carb.
Sounds to me more like a jetting issue. Was this a brand new luv specific weber kit or a carb you got from some other rig and put on? Could be the jets are a tad too big. I forget what the LUV kit comes with for jets, but carbs.net or
http://www.redlineweber.com should be able to tell you.
as for faults, the accelerator pump could be bad on the carb if iti is a used one. The bog when you stomp it could be fuel starvation.
Another idea would be swapping to an electronic ignition or a good tune up. A weber can deliver a whole lot more fuel and air than the stocker, and a weak spark might be getting overwhelmed when you put your foot in it.
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95 Isuzu Trooper Daily Driver
86 Isuzu Trooper reliable backup
77 LUV 2wd stock beltway blaster (resting)
79 4x4 LUV project: 2.6L, 5spd, 31s (eventually)
MEPR: Man, my 4x4 makes all other LUVs look good
