OK, I've dug into my other 3.0, #930-10. and just want to clarify. this is a CIS 3.0 9.3:1 piston?
and these are pics of a ROW 3.0 9.8:1 piston?
and one more thing. which of these pistons would be better to run webers with stock camshafts? I have concerns over the 9.8 CR due to our crappy gas here. thanks, Don.