Now let me know if we are not talking about the same thing here Tyrie, because you first ask if its suck through or not? and now your asking about the bolt on webber. making your question to be the same but there two different parts that each have there own function in the set-up

so Re: what was that about an adapter and a weber on a std inlet manifold???

Based on what carb your going to use. even thoe its a cheap set-up (peformance) is the word to remember, so you woulnt run a std carb on any turbo set-up even a cheap one. the cheapest way to fit a webber is to get a adapter plate for the manafold that will allow you to bolt the selected webber on. This gives you minuim fuss with a webber ready to suck through = peformance