I run the 503 in a small cube LT1 with a 2200/3.73. It isn't bad for daily driving, but it does leave something to be desired in the torque department off-idle (280k stocker felt stronger below 3000rpm). Pulls hard up top.
My set up feels way understalled to maximize the cam's potential, from a 1320 stand point.
My set up feels way understalled to maximize the cam's potential, from a 1320 stand point.