Rusty. In just going off of what I was told when I assembled the motor from the machine shop. I mean no disrespect but how would I calculate my compression all info is appreciated
You need to figure out which pistons you have. Find their piston head volume. Unless you can find out whether the heads were milled and what their chamber volume is, you'll have to shoot from the hip with what a stock chamber is, which is "about 90CCs". You should be able to see the head gasket. I would "guess" they used a composition style gasket, usually "around" .039".
You probably need to either borrow or rent a boroscope and see if you see a part number on a piston. You'll need to look that up and find the head volume and the compression height. OR you remove the heads and then you could actually measure it.
Once you find "all that" missing information, you can plug all of it into one of the online calculators such as on United Engine's or Wallace's sites and find out your compression. I can promise you that if you have dished pistons and 906 heads, 9:1 is only a dream.
Not that you cannot make power on low compression.