its 10cm from the lowest point of the car
Whats your budget for engine mods? Unless you have thousands then dont bother- Your dollar for power output is not worth it comapred to a turbo car.
But if you have the money to spend then extractors, exhaust, compression- Not sure what other really? Susspension, sway bars, good rubber and genral maint should be first on the agenda-
But yer.......look in the NA section mate- But like i said- if you have cash then you can do anything