Last week, I raced a 1991 Integra with just a generic short ram intake. He took off even with me, but at second and third, around 80MPH, I was ahead by at least 4 cars, and pulling.
My engine and mods are as follows:
-SOHC non-VTEC 1.6 liter with stock internals
-DC 4-2-1 header
-2.5 inch re-pipe from the header to the Apex'i N1 3-inch muffler (one single pipe from the header to the muffler)
-custom cold-air intake (meaning I fabricated it from different 3-inch intake piping from my friend's shop---hey it was free...and it works)
-Ractive filter with heat shield placed in a ram-air position
-Sims hyper-clear distributor cap
-Ractive 9.3MM triple-magnetic plug wires
-Bosch Platinum+4's
-OBX short shifter
-16-inch wheel/tire combo with lower over-all diameter than the stock rim-tires, to lower final/final gearing(which are your tires

)...