I just did this. I decided to do a cold adjustment at three thousandths wider than spec. So mine was .009 for intakes and .019 for exhaust. I ran it yesterday and it clacks a bit but will be doing a hot adjustment today. Even with the wider gaps, it's quieter now that I'm actually getting oil to the rockers. That wasn't the case earlier and they were really noisy.


1956 Chevy 3200