I ran a best et of 14.15 with an Ef hatch b16a, itr cams, stock header, mugen chip cpu, with slicks. 60 foot was a 1.9. Regular 14'' rims, cheap tires 14.4 all day. Its all about the little things, take the head light for fresh air, mix some race fuel, not all 02 will mess up, street tires put tire pressure to 12 pounds or even 9. load the clutch on take off, and dump the exhaust at the back if u can.