K&N makes a specific air cleaner for the 48 IDA Weber carbs.
I'm not sure that the throttle bodies you have are the same as those carbs?
IF I suppose you are using the HALL PANTERA Weber intake then I suppose they must be the same center to center dimensions?
I would think that the filter for them would fit yours.The filters are serviced separately.
Check this one out. See if it helps anything?
http://www.knfilters.com/searc...ct.aspx?prod=56-1210
It may be that the baseplate for your TB are unique and or custom made.
I had a set that I sold. I can confirm that they did not have the overlap issue that you now have.
The information on that page indicates that these filters are red. That may be a mis-listing, i.e., "in error".
The picture they show is the filter I had. It is not red and the ones I had (a set of four) were all black like the picture.
I think these are the filters that you need?
Do you have a picture of the entire assembly put together on the engine?
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