when the car is warm the engine seems to choke

Car: Acura, Integra, 1994 - Back to Fix-It - Acura Integra Repair Manuals

Q.I have a stick-shift 1994 Acura Integra RS. After driving for some time when the car is warm the engine seems to choke.
It happens at any speed in any gear, usually after 2500 RPM. It feels like if something blocks the cold air intake for a second and the engine just chokes because lack of air. A second later the car will just shoot out and continue driving normally. It often happens when i Rev up high and shift quickly to the next gear, the car will just "lock up" for a second and jump out and continue driving as normal.
This starts happening when the car has been driven for a while and the engine is hot, when i first turn on the car and drive it around for a good 20 minutes its fine. Ive Changed fuel pump, ignition cables, air filter, spark plugs, fuel filter, distributor, MAP sensor, TPS sensor, Speed Sensor. Motor runs good and strong. No Check Engine. I've heard it could possibly be a clogged cat, short circuit in my harness, bad ECU, or problems with my ignition. Any Ideas??

I already checked/done: FUEL PUMP, FUEL FILTER, MAP SENSOR, TPS, DISTRIBUTOR,

Answer An easy way to see if its a clogged cat is to disconnect the pipe from the exhaust manifold and drive it. See if it still boggs. Give it a try to rule out a clogged exhaust.

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when the car is warm the engine seems to choke