can a rev limit be set higher than the grid map for fuel and timing? does it default to highest rpm on the map?
The rev limit can go beyond the scaling you have available to you on your maps. It will just carry over the last entered values for anything higher. For example if you have 745 in your TPS vs RPM fueling for 14,000rpm at 100% tps then that 745 will carry over for anything beyond 14,000rpm at 100% tps. You may also be able to change your map scaling on the X and Y axis to accomadate higher RPM adjustments.