i tried here and this is what i got
http://www.kb-silvolite.com/calc.php?action=comp

cyl head vol= 60cc
piston head volume =2cc
gasket thickness=.045
gasket bore=3.905
cyl diamitor bore=3.898
deck clearence=.008
stroke=3.622

rod length=6.1
intake closing point on cam card=43.1

SCR=10.788
DCR=9.810

 

That calculator is off and with 43* it's going to be pretty high. Take a look at my thread about compression and you will find links to more accurate calculators.

 

http://members.uia.net/pkelley2/DynamicCR.html

 

thanks guys

 

im still getting 9.80 on that site for DCR. what gives

 

because your using cam timing from .050 and you cant do that, you need the seat timing (.004/.006).

 

i come up with 11.2 SCR

 

http://www.rosspistons.com/calculator.php
to figure static compression

to figure dynamic go here.
http://www.rbracing-rsr.com/comprAdvHD.htm