now daily drive the CA and save as much money as you can, spend it on a car that will get you better $ to smile results. At the end of the day it's a ca20 mate, there's no gains to be had.
If you look hard enough manual u13's pop up from time to time for a measly $1500. Now thats a car that will get results, there are a shitload of bolt on parts available, particularly from the US. All you need is the usual breather mods and the thing rockets.