Oil on pistons?

66Valiant528 said

Just throwing this out there.....blown power valve? 70 primary jet shouldn't be too far off with a 268 cam. Try 67s if you want to jet down. But pull the primary metering block and either test or replace the power valve.

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Also that's what I bumped them down to. I'm going to buy some cheap oil that I can run in the engine for just enough to get the engine up to temp and adjust timing again. I can flush any other fuel out of the oil that was left in the engine. Then change again to a better oil. Will change plugs also to new ones so I have a fresh start on looking at the plugs during tuning.