Help with building a bit more power in to the 318

Hmm all of this made me think! I will think some more though and see what I can come up with at the time being, since I will be buildiing a 408 sometime during next summer it kinda feels dumb to spend a lot of cash on the 318!

And just for the sake of it, the 904 has run less than 500kilometers since total overhaul :)