Change the spark plugs, leads, air filter, distributor cap, change the exhaust, remove the unnecessary weight, put a racing stripes, lower the car, put some low profile tires, lower your car.
Do like any other car. Add a better intake, exhaust, change your plugs, use higer grade fuel, add compression, or increase displacement. The is always the forced induction or engine swap rout but that can get pricey. Speed is a based on how much you want to spend.
Tune up the engine, put platinum plugs in it. Bypass the pulleys you don't need to make the car run, like the AC compressor. Each pulley you bypass gives the car an extra 5 horsepower. A full sized pickup only needs 17 horsepower to go down the street at 55 mph.
the best way to make it go faster is to take it in for a tune up chances are that the engine and trasmission are not working as well as they should be. A good tune up and fluid changes should give you back about 15 hp.
I would do a compleat tune up on the engin, Spark plugs,wires,ect. then I would change the oil, and the air filter. check your tires for corect air pressure.
