[TitaniumTT]

If your cal is setup in such a way that at 2k it goes pig fuck rich everytime @ 2k, than everytime you go to 2k it's going to miss and not fire....

I had a car with a wolf that everytime you would get to about 3k it would cut out. Give it a little more throttle and it would come back to life.... floor it and it would stumble but rev.... found out that he had the secondaries wired to the primary circuit... so give it a little throttle and there would be enough vac to pull the fuel down the runners. crack the throttle and there wouldn't be enough vac to pull the fuel out of the secondaries because the primaries had all the airflow. Crack the secondary butterflies and viola, enough airflow through the sec runners to get the fuel into the chamber. I thought it was a tuning issue until I realized that everytime the secondary throttle cracked it would come to life....
point being it wasn't a tuning issue but a mechanical issue, yet it was always repeatable.

Seen the same with tuning issues because of fucked comps or just about anything else..... it's usually going to be repeatable regardless of the issue at hand.

Needs moar data.... make sure ecu isn't cutting something, make sure ecu has good signal at that point, make sure plugs are good, tune to 12.5-13 @ idle by adjusting base fpsi, rev it up see what happens.

Also.... make sure the thing is up to operating temp before trying to rev....