Quote Originally Posted by Gusaroo
Using the calculator, I ain't ever gonna get it up to 8.5??? Even at 0 degrees it only calulates to 7.83... its depressing. I geuss I will deal with what I got now to get the car on the road and find another motor to build s-l-o-w-l-y

my specs used for the calculator:
heads 120cc
bore 4.25
stroke 4
rod length 6.135
stat comp ratio 7.83 (calculated)
dynamic comp 154.60psi (calculated)

I am now looking at a Comp Cam 268H, found a new one with lifters cheap on ebay.
268 advertised duration, 218 duration @.050, .485 lift, 110 lobe sep , no specs for intake valve closing point
Seems kind of close to what Nitro recommended (I think)
I like those cam specs for your engine. For the $50 or so to get the compression up I would use a metal shim style head gasket. This will be typically 1/2 the thickness of a typical Felpro style gasket...then with heads off maybe get them resurfaced a little too...this little bit will help.