I have the Walbro 450LPH fuel pump (p/n F90000267) and I am not sure how to install this thing in the stock fuel assembly. If anyone has installed one of these pumps successfully, please let me know what you had to do.

 

http://www.dezod.com/files/Cageassemblymod.pdf

this should help you sir Dezod sent me this because I was asking the same question..