Quote:
Originally Posted by jmansracerocket
I have the a-11 cam and like it, I use 10 gram rollers with it topping out at 35-36mph still have to port my own head I think im going to mill it .030 also
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Be REAL carefull with doing this.
The ex valve comes pretty close to the piston with the A11. Shaving the head will only make it that much closer to contacting it.
And with light weight rollers (I say 10's are light because my yerf came with 14g stock) your WOT RPM will most likely be higher if you're using a CDI with raised or no rev limit.
Couple that with weak stock valve springs, and you have pretty good chances of floating a valve on a WOT run and causing damage.
Just giving you a heads up......