Hard to get that much cr out of a 350 with 76cc heads. The head gasket adds 8cc and the piston in the hole adds about 4cc. Do the math.
You will need 64 cc on a 350 to make that cr.
76cc heads will do a good job with a 383 or 400.
You should set the cr to the cam that you want to use. First determine which cam you want then make the correct compression ratio (not the other way around).
A 10:1 engine needs a pretty big cam to run pump gas. Between 230 to 240 degree of duration at 0.050.
9.5:1 cr with a cam in the 220-226 range with a 383 rotating assembly and the 76cc heads would be a good combo for your truck