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Old 04-13-2012, 03:11 PM
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Originally Posted by wolf k View Post
Connected a vacuum gauge to the tap on the IDF carb, turns out that it is a ported tap. Had a nice steady needle, it was low at 7 in.hg at 1500 rpm, but only drawing from one cylinder. I do have a mild camshaft.
So although you only have 4 ported nipples, if you tee all the ported nipples together, you should get a higher average reading.
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