New orange box is junk, I went thru two new boxes and swapped to MSD. I run a 6al box for the rev limit pill. Also have a 4 pin HEI installed that I use as a backup if the MSD box fails. Swap the distributor pickup plug and coil wires, install the power fuse for HEI power, and your running again. My used old 6al $100 swap meet box has never failed.
