ok my friend has the same parts i have upgraded on my car and his is faster now i have bbk headers, bassani xpipe, 3.73 gears, cobra intake, gt40 heads, and his car is faster than mine i also have a spare in my car he doesnt i think this could be it but he was infront of me by a car an a half what could i do to get my car up and running better i have an lx he has a gt. i got oil changed did turnup all good my tires are at 4000lb of pressure i think this is too much what do you guys think?
