i have a 1990 civic DX hatchback (aka EF) it had a d15b2. i swaped a jdm d15b into it. i wired a td-42u dizzy and the MPFI, and a P28 with obd0 to obd1 jumper harness. the car wont stay running without my foot on the gas just a little. it BURNS through a full tank of gas in 75 miles. it runs rich.... VERY rich. theres black exhaust coming from the tail pipe. ......ok now for more .... when i accelorate in 1st and 2nd and it hits v-tec it breaks up really bad. i fixd the cam timing on the car and it was off by 2 teeth and then adjusted the ignition timing. its still not running correctly and idk what to do now i tried to take it to a shop they said they dont know what im talking about with all the honda lingo lol. i took it to a swap shop they charged me $500.00 to tightin the gas pedle so i diidnt have to stay on the gas. so i really dont wanna go back there. can any1 plz help me with this neverending project????