cls6888

well sometimes it seems like my car really wants to rip other times it doesnt. At the track my 1st run was a 16.3, second run was a 14.5, third run a 15.8..... i really dont believe it was my driving... Same with driving on the road somtimes when i get on it it seems to not wanna go and other time it shoots off like the lil rotary rocket it should. Could this have anything to do with my secondary injectors or fuel filter..? if not what could it be..