Is this V8 exhaust too big for a 70cc bore?

[mardotx3]

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I just acquired a used V8 exhaust. The guy I got it from isnt sure what size motor it was used for. I measured the intake pipe inside diameter and it measures 33mm. Is this pipe too big for a 70cc motor? The exhaust port of my cylinder only measures 29mm.

[ped]

Hi mardotx. Pipe may be a little big? give it a try? It's already used.