Holley sniper EFI motor suddenly revving uncontrollably when I blip the throttle

Can also verify that temp sensor is staying wet all the time. We ditched the sniper for sequential. I cannot understand how you open the throttle blades for initial start up and then go back to zero when you verify.
Because I don't open the throttle for start up. I simply hit the starter button and it starts. Anyway the reason has been discovered and solved. Secondary butterflies were sticking open in their bores.