[KiWinUS]

Zero Tim at all. Runstand is the worst thing you can do to run in an engine. Engine needs to be under load The best way is to install and run it hard and under load in your vehicle.
55+ years building flatheads and race engines at the highest levels in racing. You can possibly glaze bores running on stand then it may never bed in. Just trying to help. No skin off my nose if you choose not to take my. Cheers