Hello Tim:
I obtained a modern oil bath air filter from Vintage Auto Parts Inc. and it does fit the CMP carburetor. The dimensions are as follows:
Outside diameter of the unit: 10 inches
Height from top of lid to carb. mount: approx. 6 inches
Can be mounted to carbs with air horns of 2-5/8" and 2-1/4" outside diameter. There is an insert reducer supplied to obtain the smaller diameter.
The unit comes in a high gloss black colour and is manufactured by United Specialties Co. in Chicago Ill. Vintage Auto Parts is a distributor. The price in May of 2002 was $69.50 U.S.
Also they supply the pan and correct threaded mounting screws, that covers the flywheel (adjacent to the oil pan). From all the junkyard's I visited and searched their scrap 216's, this item was always missing. Cost was then $45.00. Shipping cost for both parts was $32.25 U.S. plus the Canadian Gov. share GST & PST. totaling $39.88 Can. No duty was charged.
Vintage Auto Parts Inc. can be reached as follows:
E mail
www.vapinc.com
24300 Woodinville - Snohomish Highway (believe me the spelling is correct.)
Woodinville, WA 98072
U.S.A.
Tel. (425) 486-0777
I hope this helps you out and any others out there.
Regards Ted