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I would think that would be normal with a "two-step" or any firing sequence interrupting device. It probably ignites the remaining fuel during the next firing sequence or the hot header sets it off. I'd say it's probably doing the same thing in daylight, just not as noticeable. And yes, I too would say a little fat on the two step, seeing as how one cylinder or so had the same amount of fuel (or near) as the other cylinders, except the cylinders that were selected by the two-step had no spark!

Dave.
 

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Discussion Starter #4
it only started it after i put the 189 jets in it.

Its, fine, I get that loud rumble in the headers if I dont slap the leanout open after the throttle blades slam shut. lol.


This wasnt a "is this a problem" thread, I was showing Chris what i was talking about on the phone before it died.
 
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