i bought an 87 gt air density t top car that uses deep reach plugs? i then bought an 88 gt that was in much better shape with no motor or trans for 400 so this 88 was a maf car i put my motor and ecu in this car the car runs rich surges at idle sputters if you give it more then 1/4 throttle and dies after you give it gas i have replaced the tfi,coolant temp,coil,fuel filter,tps,plugs,idle speed control valve and still runs like complete **** pls forgive my type and grammer i am in the dark