Join Date: Nov 2001
Location: North Central Illinois
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Re: Question for Weber carb users.
More than likely if you are using a Purlator style regulator and blowing fuel out of them , the input pressure is too high . They are only designed for 10psi input or less, and work better in the 5-7psi range of input . Any dial type , no matter who's name is on it , is made by Purlator . I just found out today that they also had a problem with some of them blowing fuel out , and the price on them just went up . Napa seems to have dropped them from their product line , they are showing up in the new books as obsolete and the dealers are sending them back . You could make up a two-stage system with the Holley style reg's , although it may have problems keeping the pressure steady since the two diaphrams may fight each other, I've never tried it myself yet . Holley does make a low pressure type, but they are expensive and a special order at that , I'll look and see if I have a part number , maybe Summit or Jeg's can get them . The float can be lowered and limited to 10mm of total travel to help with inclines, and the top section's bowl vent can be closed off and tubed to keep it from flooding on hills . I usually set them up with the bowl in the rear so that if they do have a problem , it's on the downhill slope and won't get you in trouble by stalling out going uphill . Hope this helps,