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Never used 19801 Turbo Action converter.Set up for non 360 /904 combos.Installed once,never ran.11 inch,furnace brazed inside.Supposedly good for 2500 to 2800 stall.Mancini asks 340.00.I 'm asking 175.00 plus frieght.In California,93420.Pm me for pics,haven't learned to post pics yet,Thanks.