Hey guys im just wondering where people take their lines for tune ups or services? i do the oil and all myself and pads etc, but my 33 is due for a drive belt change n a fuel filter change, also a good tune up for once. i took it once to Ultratune cos i was desperate for an oil change and had no time to do it myself. i asked for a tune up cos i know my car is running way to rich but its still running rich. i see alot of skylines that are probably running rich just from alot of the black soot coming from the exhaust when the revs get up and mine isnt to different. im sure its just running rich but i could be wrong (it is black smoke, not blue) just to be sure, its most likely running rich yeah? so where do ppl get their tune ups done?