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More questions....My car was originally a three speed on the column....is my factory z bar loctaion going to work on a 10.5 bellhousing.......and is there any issues with the spitfire headers on a manual steering 4 speed 65 dart? Also.....being that my 4 speed is a 1966 A833.....is the register hole more than likely the 4.30 size? 23 spline of course......