now that youve raced him, youve found your major weakness: traction.
make sure that as you build up your motor, you build your suspension.
tons of power is useless without good traction.
if your into drag racing, build a drag suspension.
invest in some drag struts/shocks (or adjustable ones) as well as some rear control arms, maybe a panhard bar. jegs also makes these things called "jegster traction arm relocators" that bolt into where the stock upper ccontrol arms are, and are basically a new mounting tab that relocate the control arms mounting point to a higher location, which puts the rear end under some downward pressure, increasing your traction.
maybe some good drag radials as well.