OK here we go. First run on 1/8 mile asphalt the bike ran lean at about the 330 mark. U know wt happens when that happens. burnt up Trying to hook up a vacum fuel pump i got off ebay. seems to me that the pressure the pump is puttin out is to much for the floats to hold back. its pouring fuel out the power jets and vents on side the carb. wt kind of pressure do them pumps put out and could i use a regulator to drop the pressure and still get enough fuel. im running 39mm mikuni carbs