I would go with a gm HEI ..I put one in my 46 1/2 ton when I rebuilt the motor and have no problems at all...speedway motors sells them.....it also eliminates the use for a coil, and I have a 1956 235 in my truck

Last edited by hoozat; 12/26/2015 4:24 PM.
http://i629.photobucket.com/albums/uu14/kurtdh519/002-1.jpg