The factory hemi computer has 3(?) different timing tables. WOT & MBT are two of them. I'm posting them below. I believe WOT table is referenced and timing is pulled from that based on conditions, and MBT is the table that is a 'cap' - never to be exceeded.
The MBT table is the timing at which the engine makes maximum torque. This really needs to be mapped on a dyno with race fuel. Advancing it past that point doesn't gain you anything so that's why it appears as a "cap".
