All true, however when someone goes the big bore route, usually they will also put in high-comp pistons. After all, since the pistons have to be changed anyway, it makes more sense to get some high-comp ones.
+1. You just got to tune your ignition timing and run higher octane.
The DS motor's considerable untapped potential is promising. I 'spose it's the better stock ports and bigger valves. The extra capacity doesn't hurt either. I would like to know if someone has exploited the existence of the head gasket to up the compression a little, maybe get it a bit closer to 11:1. Like putting Yoshi head gaskets in your Gixxer.
What are the DP cams for the DS costing now?
While the small valve area, compromised inlet ports and mile long inlet manifolds on the carbed 900 hurt top end power, the long inlet manifolds give the carbed 900 a certain character in how it makes power. They are a little grunter.
