PastorMatt, the threads are both MNPT, male national pipe thread, looks like 1/8" pipe thread, it's known as a hex nipple. Is the filter a new item, do you think the carburetor threads are damaged? Did the nipple thread in without cross-threading or binding?
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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