I am running a berkley pump setback to transom and running a motor rail kit. Motor is a BBC. Would like to know roughly where I should locate motor? More forward or set back with the pump? I have two different drive lenghts, if i go longer then what I have. Can you make one like a drive shaft on an auto? Also I would like to know who makes altinator pulley that bolts on to the pump drive with altinator mounted to motor rail? Thanks Z Racing