I am reassembling my engine after punching out the jugs to accept 107 ci pistons. Any sugggestions for ring gaps?

 

I'd just follow the specs provided for the pistons and rings. Can't go wrong with that.
Ron

 

The Wiseco's have a different gap for the top, and second ring.
Don't know what piston you have though??
Scott

 

The local engine builder recommends 4 thousandths per inch of bore on the top ring, 4-5 thousandths per inch of bore on the second ring, and .015-.050 on the oil rings. Sound about right?

 

That will work fine.

 

For what it's worth as an example only, my CP pistons require Bore x .0045-.005 on the top ring, Bore x .005-.006 for the second ring, and minimum .015 for the oil rings. This is for Street/high performance. The second ring requires a touch more gap since it runs hotter than the top in just about any piston/ring fit. I'm sure your builder has a handle on all of this.
Ron

 

make sure the ring is cut squarely and de burred before install.

 

And whatever you do, DO NOT leave old parts, in the clients engine...