I ran into the spit and sputter at full throttle on my H22 Swap too. One time it was the MAP sensor and the other time it was the Spark plugs. I cant remember if you need to run hotter or colder plugs. But if you run the wrong ones it will foul them out over and over again. It gets frusterating. If its the MAP you should be getting a check engine light. IF not then its probably your plugs or your ecu. You CANNOT use the stock accord VTEC ecu. Manual or auto. Its fuel maps are way wrong and i think that the stock revlimit on the accord ecu is 6500 or some where around there. If you havent already then you should go on ebay and get a skunk2 or JUN reprogramed ecu. You should be able to pick one up for around 200 dollars and I noticed a HUGE diffrence from the Stock H22a ECU. Hope that helps some.