I would steer clear of the Darton sleeves unless you have gotten a KILLER deal on them. Also - blueprinting is not garbage - especially if you quest for more power - and also a great ALL-MOTOR tuner can use that data if you ever want to re-build or shoot for more power later. It's always good info to know if you roll a bearing or something and decide to re-ring the motor w/ a different builder. I have a "birth-certificate" on all of my builds.

Since this is the all-motor forum I wouldn't sleeve the motor unless you're adding a power-adder later or just want more displacement. In that case yes I want my displacement from the bore instead of the stroke - some people disagree though.