Carburetors Tend to Ship within 1-8 Business Days.  The Reason for this is the Live Engine Testing.  All Carburetors MUST be Run Prior to Shipping.  Carburetors Must be Tested and ALL Check Points Must be Met and Signed Off by either an Owner or Manager. Carburetors Ship Either USPS or UPS, if the Carburetor Fits inside a Flat Rate Box, then We Will Use Common Sense and Pick that Option.  Common Sense is Something in Short Supply these Days, We Tend to Use it as Much as Possible.  Questions or Concerns Contact Dan at 626-448-2521