170 vs. 225

Where's yours?????????? :blob:
where is my what? its a fact with boost... the only thing that limits RPM (besides mechanical failure) are things that affect (not a good wording but here it goes) how its runs. things like floating valves, to small of an inlet and island map for a given combo, fuel issues, etc. a boost motor is not confined to a RPM range for a given cam like a NA motor.