318 horsepower

KB399 pistons are a domed piston and will give an easy mid to high 10:1comp with a 65cc head in a teen!

But if you go with the "big inches are everything" philosophy then then why not go the next step and bolt in a 440?
Mild hydraulc cam and 12's all day with easy driving?

In Australia 360's are not that readily available especially for a reasonable $$ but I expect they are still not too hard to locate in the US.. (lucky guys)


Steve.