Here's a list of my mods and the times I achieved with them:
This was my first time to race on a dragstrip:
-stock 4-speed automatic trannsmission
-Eibach springs
-KYB struts
-k&n cone filter
-breather filter
-Accel ignition wires
-Summit 3-chamber muffler
-17" Axis Mag-Lite wheels
-Yokohama tires (205/40/17)

Got tired of the autotragic:
-swapped 4-speed automatic for a 5-speed manual trannsmission
-using automatic pcm (no rev limiters)
-Quaife differential
-AEM cold air intake
-2.25" cat-back
-racing muffler
-short shifter
-modified motor mounts
-bypass a/c belt
Got tired of the pos stock exhaust manifold:
-OBX stainless steel header
-Catco 2.25" hiflow cat
-full 2.25" exhaust
-bored stock throttle body (57mm @ mouth, knife-edged stock plate)
-LUK clutch

...stay tuned for more...