^^^^^^^

^^^^^^
WTF are you talking about?
Anyhoo, Sounds like a tip-in issue, does it happen at any RPM? If so it does sound like that ECU was mabye chipped?? or mabye the incorrect ECU for your application and is causing a over-rich condition or a over-lean condition, Which ECU is it?? Were you told it was chipped? throttle cable would have nothing to do with what is happening to you(unless its loooooooose as hell

) which I doubt.. let us know, Also I would check your plug wires and plugs, fouled plugs or bad wires/wire can cause a tip-in like feeling.
Alot of cars on the road will go lean for a milli second when you hit the gas hard, its not that uncommon, but yours seems to be doing it a little to long. LMK if I can help