Didn't you ruin some pistons not long ago though? What rings are you using?

Good to know you're using the Probes. I think that's probably what I'll end up with, however it says on the website with a 60cc combustion chamber I'm looking at 9.8:1 compression, although on another website it suggests 9.5:1. That's a bit high but I'd consider just using a 3.5 pound spring in my wastegate instead of the 6 pounder just to be safe. The dual stage boost controller will take me up to 7. I haven't had my heads CC'd but I think they're supposed to be at 60ish from Mopar and they haven't been molested yet.