i am rebuilding this winter. so far i have bought a andrews ev27 cam,adjustable push rods,new lifters and inner cam bearing. will know soon if i will be boring it out. as far as head work i am just going to clean them up with a valve grind and new valve seals. what i need to know is the difference of a efi tuner and the ignition module. do i need one or both . this bike is a 1998 ultra classic 80"evo efi. thanks for the input fellow bikers i do appreciate it very much.

 

Power commander is a good choice. I just bought the power commander V for the build on my '10 ultra 96" with the andrews 48H.