The truth about caltracs

famous bob said
Kim, jhow big a rear tire are u using on this 10:40 set up ??

Hi bob. 29x11.5x15 Hoosier quick time pro on a 10 inch centreline with 4 3/4 or 4 7/8 back space. Car is mini tubbed. Trans is at 0*. Pinion is at -5*. My converter is a 9.5 PTC, flashes to 4100 rpm. Kim