Just as slow as before mods..

Unhook your throttle pedal linkage at the carb
Rotate the carb linkage arm to full throttle, notice how inside the carb the throttle blades are standing straight up, this is WOT Wide open throttle
If your throttle pedal is all the way to floor, compare the distance from the carb throttle pedal mount at WOT to where your cable is......the distance between these two is what you need to adjust to achieve WOT