Karl from the other forum is using the VM26 606 on his buggy with a 62mm slug, 4 valve head and 2mm stroke and still has the vacume pump with 3/16" lines. These carbs have to be tuned to a specific engine. Unlike the CV carb in which jetting is the tuning. The VM series besides jetting you have needle jet, jet needle, needle and seat as well the slide to consider in tuning. The fact that your engine is still stock it will not require any more fuel using the slide versus the CV carb. Google tuning the mikuni vm series carb. I had referenced < Mikuni carburetor operation and tuning > by Ian Williams Tuning.
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