Inlet carb manifold

Looking to fit a bigger carb to the TDR to compliment the Athena 170 top end I’ve got. But I’m struggling to find a bigger diameter manifold, I’d like to keep the oil pump/Autolube. So don’t want to go down the TZR route manifold but if I’m right in my thinking I could use the TZR carb and manifold as the oil input is on the carb ? But is the TZR carb any bigger than the 28mm standard.
Open to suggestions and ideas ?Cheers

@Scootjockey the TZR Belgarda uses a 32mm carb and therefore the manifold is bigger and will take a bigger carb.
The problem is is the TZR manifold points straight and not angled. Therefore the carb will foul the shock.
I have used Carb joiners before with a spigot ring to make the manifold rigid. I took a hole saw to my manifold to enlargen it. Been like that since 2014...

@Scootjockey You're laughing then. It should be the 1993 TZR 4DL Belgarda.