At 09:44 PM 11/18/04 -0500, Jonathan Stein from mgatwincam group wrote:
"Quite a few of us have had highish compression pistons made up by Arias to a design conceived by Ralph Steinberg at Cloverleaf Auto near Philadelphia."

At 01:20 PM 11/19/04 +0000, Don Haynam wrote:
"I too have the Arias pistons and I believe the design is such that the pistons are all made to the original 9.9/1 and they then machine off the top to whatever ratio is requested. I ordered mine at 8.3/1 not knowing that you could get higher. When they arrived they were 9.9/1. I called Arias and they gave me the dims. to remove material to make them 9.3/1, which I did."