Ha, ha I used em (ACL's)!!!
Built mine near the end of last year and have put 10,000k on it so far. Got the block machined to 86.5 and run a 3.5 thou piston to bore clearance, then built the rest up myself.
I was a little generous with the compression ring end gaps 17 top, 21 thou second ring, but it seems to work well.
Dynoed at 363RWKW at 20psi and revs up to 9000RPM. Daily driver since 2004! and still is.