Lower your celica, raised Hood
scoop, ground effects, a wing, sticky tires, high gear ratios, and a good set of 17's-18's. These will all help you little by litte to achieve a high top speed.
Shit i broke 110mph in a race with an Xterra on I-75. But i have 6spd GTS and WASN'T in lift during the whole race. The Xterra was swirving and weaving outta traffic, everyone else backed down. Had to go at it!