Oil Additives - Jake?

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i recently completed a 3.4L conversion. everything is running great, but on occasion, i'm hearing a single sticky lifter at idle. the motor sat for eight years prior to being installed in my car, so i figure a little bit of wear & oil circulation would start to clean everything out.

i'm at about 700 miles now, & it still happens. i'm wondering if there's a remedy that could help clean out any gunk. should i just rely on time & normal oil detergents? years ago, i remember various solvent oil additives one could use in these types of situations (i.e. sea foam, etc). these solvents could be run in the crankcase for a little while & really worked pretty well. i am, for obvious reasons, hesitant to go this route w/ a modern porsche motor.....

right now i'm running castrol syntec 10w-30 with an OEM filter. i plan on an oil / filter chantge w/ another oil analysis 300 miles from now. FYI, the analysis of the oil that sat in the motor for eight years was excellent.

anyone have thoughts on this situation?