[Flitzr951]

I ordered a custom piston set from Diamond Racing back in February and I have yet to receive them. I emailed them today saying that if they didn't show up I'd be taking my money back. On that note, they had the specs on hand when I ordered them but now that I may go doing this order on my own I need those specs.
Also (while I have an informed audience) I was planning on staying with the stock compression etc... I have had the Darton MID wetsleeves installed and I need to go to a larger bore. I'm looking to go to a 104mm bore, bringing me to a 2.7L. So my second question is: Should I stay with the stock compression, or is there something to be gained by changing things around?

Thanks