I realy need gears I CANT even SPIN them in 1st

By the end of next month I will get some 3.73 I had a LOT more power when I had the stock T-5 I had a best of 13.8@106 with the tires spiing all though 1&2 to about 55MPH NOw all I can get is a 2IN Brunout. I hope I can take 1sec. off and add about 5MPH I think I will need to get a cluch to do that It may be optimistic But I can Hope