I took a look at my Metra80 dykes ring and it looks rather large
So I measured the gap at .002" which I'm pretty sure is waaaaaaaaay to small. I did some poking around and found this formula. How do you all set your gap?
The gap should be .004" per 1.000" of bore.
Example: your cylinder has a 2.500" cylinder bore
2.5 x .004 =.010
Your ring end gap should be no smaller than .010". Gently push the ring into the cylinder bore so it is parallel and about 1" below the head surface. Use a feeler gauge to measure the end gap. Larger is OK, smaller has to be corrected. Use a flat file to remove material from the ends of the ring if needed.