i went today to work on it my car and i took to vac. hoses re-run them switched them pluged of and all kind of thing i took the plugs out and they had carbon all over them i cleaned those up put them back in and fired and ran fine reved i good time then went back to the same prob!!! i know i got to get new plugs. all the exhaust i have on the car rite now is a header im in the process of get it mad for the car there are two plugs i found that arent hooked up and one is located to the right bottom of the intake the other is above the oil filter will those make the car run so bad i have no clue and if so i have to hard wire them into my harness i am running a p13 computer thanks for the info