I finally found some paper carb air filters that would fit on my TR3. I had to fabricate the backing plate that bolts to the carbs since the mounting must be offset just as the stock TR3 metal mesh air filters are offset. I bought the Mr Gasket kits, number 1486 at O'Reilly's. The kit comes with a nice "blingy" chrome cover plate that fits the 6-1/2 inch diameter filter. The 1486 kit is for a 1-1/2 inch thick filter and cover plate. The 1-1/2" filter alone is number 1486A. With the offset backing plate I fabricated, there is plenty of clearance of the inner fender and of the bonnet (hood). Since I only have a saber saw to work with for cutting the metal it was a somewhat big job to fabricate the mounting plates. Would be a lot easier with a good flexible band saw. I used 16 gauge sheet metal for fabricating the mounting plate. That seems to be heavy enough. I have attached a few pictures of the mounting plate and the completed installation.
Regards,
Bob
Regards,
Bob