Originally Posted by wmay11
Stick with the 2669. The 9886 and the 2015 will also work.
30% pop in a .1 shim. The engines have so much bottom end shimming a bit up will only help top end and go a bit easier on the motor.
Why 30% if I may ask.
It's actually the 2069 for 3.5cc
The 2069 gives more RPM, the 2033 more torque.
I don't know if the 2033 will be too much for the new 2013 long stroke.
Nova 2015 seems to work with every engine ...