sagefinds Posted January 17, 2023 Share Posted January 17, 2023 This one has four bolts where most of these early brass ones had two that I've seen. I guess they didn't want it to vibrate loose. There is even a tab sticking out the side that may have been a brace. The flange is 3 1/4 x 3 3/8,bolt holes are 2 1/2" apart on center,intake hole is 1 7/8" inside,throttle hole 1 1/2". Appreciate any info on it. Thanks. Link to comment Share on other sites More sharing options...
Dandy Dave Posted January 17, 2023 Share Posted January 17, 2023 Looks industrial like off of a truck, heavy tractor, or piece of construction equipment. 2 Link to comment Share on other sites More sharing options...
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