In case you don't know already - swirls in inlet manifold - found out to my displeasure! However, I think you would have the uprated manifold, swirls and bar across the top so you shouldn't suffer from the leak I suffered - sucks!
Bought a replacement manifold from LMF Vauxhall on ebay - there is a thread on this somewhere - and, to my surprise, it came in an original Alfa box! Plan is to whip the swirls out of the old one, have the holes blanked with machined parts on the top of the inlet manifold and, perhaps (one day) fit it to the cloverleaf you now have me hankering for! in the nicest way possible - you wily tempter!!!!