I'm assuming that the clusters ain't dripping from too much psi (& wouldn't think bad needle/seat cuz it has been kitted & likely a new filter, that it is definitely an idle circuit prob. some cluster gasket are cut poorly. did this carb idle OK any time prior to this. check the transfer slot when you can. what is the idle speed? EDIT you pretty much duplicated the OE jet/rod orifices?, maybe a bit richer which is good as all OE AVS's are lean & AVS strip kits are pretty much non existant tho I dont think the main metering would be into this if the transfer slot is pretty much a square