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A few weeks ago I posted a topic about a 200RPM drop on the right mag of my 1946 415C. I appreciate the numerous, over a dozen, responses from members of this forum. With your help and in a very logical process we eliminated as the problem both mags, all 8 plugs, timing, and the wiring harness. At least 2 responses from the forum correctly identified the problem. #4 cylinder intake pipe inner hose had squeezed into the intake pipe blocking 40+% of the intake passage evidently blocking enough fuel/air mixture to create a problem when operating only on the top plug/right mag. We re-positioned the hose so it did not block the intake passage and the mag drop was eliminated. I appreciate all your responses and advice. Thanks. Dennis Hatfield ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm
