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Unfortunately the rings move - a LOT. I tore an engine down after a couple of hrs of running. And my carefully oriented ring gaps were all over the place. (I posted pics with them marked, on the 930 forum I think). I seriously doubt the placement of the gaps has any lasting effect. I still do it, as a matter of habit. But I know they will not stay that way from the first start up. The rings should have bedded in by now. As above - a leakdown would be useful. Maybe a broken ring on assembly? A broken oil ring would be hard to detect like this tho. Maybe pull the plugs and see if all same, or you have one or two suspect cylinders?
Does it smoke on trailing throttle, or just after you re apply some power (guide seals).
Alan
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83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-)
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