The early Stanza TB is the best candidate, as Ash and a few others have found. There are others that will do, but not as well (i.e. Infinity) I've done the 60mm throttlebody conversion and ovaled out the bolt holes in order to get them to mount to the plenum without having to add material as described in the links below. If you could bore a set of these out to ~65mm I would be the first guy in line~ I do believe I have an unmolested set I could send to you. The price range you mentioned for modifying TBs is good with me. I also have good OEM seals. La-Z-Link La-Z-Link
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