Don't let your stock oem fuel tap be your carb's main jet! research has shown that the fuel flow from many standard fuel taps can starve even standard engines of fuel,let alone a modified and tuned engine! the Pingel range of non vacuum fuel taps and adaptors ensure a reliable and plentiful supply of fuel to your carbs! Many variations of taps and tank adaptors are available, see our other listings or please message for more info and advice for your particular application!   This Pingel has dual 5/16" outlets ,and a 3/8" NPT male tank thread.