Porting ? Can someone please explain...

Just fancy being clued up. I know it improves the flowing Characteristics and the basics, but how does it actually work ?

 

If you know the basic's then that's all you need to know. 2t tuning is a black art in itself, 4t porting is exactly as you say, it's how the gas flow's in and out the engine. There's plenty of books on tuning engines! Trying to explain in text would take forever!