mk1 golf -weber 32/34 jetted for 1.8 on a 1.3?

i have read it is possible to do , i have the weber but the base plate is a diamond shape where as my pierburg is a rectangle shape, so is there a base plate i can use for the weber to fit the webber to my inlet?

cheers
neil

bump?
anybody please!

if its jetted for a 1.8 sort that out first or it will run like a bag of hammers