my best time at the track here in bristol is a 17.3 what is wrong i know i should be able to do better than that i saw someone here ran like a 16.7 at 83 mph i ran like a 17.3 at 83 mph at the time my spark plugs were some champion crap and they needed to be replace could this be slowing me down any more than .1 of a second someone please help me
jackson

98 eclipse rs
68k
Cosmetics-=-altezzas 80%tintage mesh grill
16 inch niche shocks
55/16 michelin pilots
Performance-=- CAI
Audio-=- kenwood 200W amp 1 lighting audio 12
alpine head unit