I am rebuilding the bottom end of a K55 and had a couple of questions. When installing the new crankshaft bearings, should the back side of the bearing cage be facing the inside of the engine or facing the case bore? I noticed when I removed the old bearings, the cage back side was facing the inside of the engine. This seemed backwards as I would think it would be best to orientate the bearing placement that more exposes the bearing balls to the fuel/oil mixture for increased lubrication. Perhaps it's not critical but wanted to check first. My second question is with regard to port polishing. I noticed that the transfer ports had been polished, but the intake track (right after the reed cage) was left as-cast. I was curious if you had thoughts why this surface would not had been polished? Was this a tech ruling back in the day when these engines were being raced? For best performance, I would think that surface should be polished but didn't know if it was best to leave as a rougher surface to improve fuel/air mixing. I am using the engine for track day fun only so no spec restrictions. Thanks for the advice.