Minarelli cylinder on Peugeot engine

I would like to know, if for fitting an minarelli cylinder on an peugeot engine, there is needed a spacer under the cylinder.
Anyone knows some page where the procedure for fitting the minarelli cilinder is explained?
Thanks!

dont fit without hard work......

2 roost.....probao sam ja kemijat sa tim,prvo ne pašu brezoni ,razmak vijaka cilindra nije isti,drugo klip ne ide do vrha mina cilindra i trebalo bi skinut,otokarit donju stranu cilindra.......to se odnosi na SF blokove,na ove nove horizontalne blokove kao na jet forcu nisam još probavao

sorry i answer in croatin,my english is not that good to reply in english